Every age of comics has special 1st appearances. The 70s and early 80s are no exception as you can see below.

Superman 249 VF 80 high grade 1st appearance Terra Man 1972 Neal Adams art
Superman 249 VF 80 high grade 1st appearance Terra Man 1972 Neal Adams art
$32.99
Time Remaining: 45m
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Jungle Action  9  1st Appearance of Baron Macabre CGC 90 White Pages
Jungle Action 9 1st Appearance of Baron Macabre CGC 90 White Pages
$50.00
Time Remaining: 48m
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Amazing Spider Man  167 1st Appearance of Will O The Wisp 85 VF+ White Pages
Amazing Spider Man 167 1st Appearance of Will O The Wisp 85 VF+ White Pages
$45.00
Time Remaining: 49m
Buy It Now for only: $45.00
Superman 281 VF 80 high grade 1st appearance Vartox 1974 DC create a lot
Superman 281 VF 80 high grade 1st appearance Vartox 1974 DC create a lot
$19.99
Time Remaining: 50m
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DAZZLER 23 FN+ 1ST FLAME 1 APPEARANCE 1982 NEWSSTAND KEY MARVEL COMIC
DAZZLER 23 FN+ 1ST FLAME 1 APPEARANCE 1982 NEWSSTAND KEY MARVEL COMIC
$2.09
Time Remaining: 54m
Buy It Now for only: $2.09
Iron Man 55 1973 CGC Graded 90 1st Appearance Thanos Jim Starlin
Iron Man 55 1973 CGC Graded 90 1st Appearance Thanos Jim Starlin
$1,550.00 (1 Bid)
Time Remaining: 54m
Giant Size X Men 1 1975 CGC Graded 96 1st Appearance New X Men Gil Kane
Giant Size X Men 1 1975 CGC Graded 96 1st Appearance New X Men Gil Kane
$5,799.00
Time Remaining: 1h 12m
X Factor 5 VF NM 1st Cameo of Appearance of Apocalypse SKU15329 25 Off
X Factor 5 VF NM 1st Cameo of Appearance of Apocalypse SKU15329 25 Off
$35.99
Time Remaining: 1h 20m
Buy It Now for only: $35.99
Marvel Two In One 52 Moon Knight 1st Crossfore Appearance 1979 FN VF 70
Marvel Two In One 52 Moon Knight 1st Crossfore Appearance 1979 FN VF 70
$8.99
Time Remaining: 1h 23m
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Marvel Premiere 47 1st Appearance of Scott Lang Ant Man Grade Between 3 45
Marvel Premiere 47 1st Appearance of Scott Lang Ant Man Grade Between 3 45
$49.99
Time Remaining: 1h 29m
Blue Beetle 1 CGC 65 1st Appearance of the Question Steve Ditko
Blue Beetle 1 CGC 65 1st Appearance of the Question Steve Ditko
$300.00
Time Remaining: 2h 8m
Buy It Now for only: $300.00
Fear 17 85 1st appearance of Wundarr Marvel 1973 WHITE pages VF+ Man Thing
Fear 17 85 1st appearance of Wundarr Marvel 1973 WHITE pages VF+ Man Thing
$19.47
Time Remaining: 2h 11m
Buy It Now for only: $19.47
Kamandi 1 VF NM 1972 Jack Kirby art 1st appearance of Kamandi
Kamandi 1 VF NM 1972 Jack Kirby art 1st appearance of Kamandi
$49.47
Time Remaining: 2h 11m
Buy It Now for only: $49.47
Amazing Spider Man 194 1979 CGC Graded 94 1st Appearance Black Cat
Amazing Spider Man 194 1979 CGC Graded 94 1st Appearance Black Cat
$349.95
Time Remaining: 2h 18m
IRON FIST 8 MARVEL JOHN BYRNE DANNY RAND 1ST APPEARANCE CHAKA 1976 NETFLIX
IRON FIST 8 MARVEL JOHN BYRNE DANNY RAND 1ST APPEARANCE CHAKA 1976 NETFLIX
$6.75
Time Remaining: 2h 35m
Buy It Now for only: $6.75
Kamandi 1 DC 1972 1st appearance of Kamandi
Kamandi 1 DC 1972 1st appearance of Kamandi
$29.99
Time Remaining: 2h 36m
Buy It Now for only: $29.99
Kong the Untamed 1 1975 DC Comic 1st appearance VF NM 90
Kong the Untamed 1 1975 DC Comic 1st appearance VF NM 90
$15.75
Time Remaining: 2h 40m
Buy It Now for only: $15.75
Nova 1 1976 CGC Graded 92 Origin  1st Appearance of Nova Ginger Jaye
Nova 1 1976 CGC Graded 92 Origin 1st Appearance of Nova Ginger Jaye
$150.00
Time Remaining: 2h 41m
ALL STAR COMICS 58 First 1st POWER GIRL APPEARANCE 1976 High Grade VF NM
ALL STAR COMICS 58 First 1st POWER GIRL APPEARANCE 1976 High Grade VF NM
$194.94
Time Remaining: 2h 41m
Buy It Now for only: $194.94
Wonder Woman No302 1st Appearance of Circe Cavelieri Cover Art 1983
Wonder Woman No302 1st Appearance of Circe Cavelieri Cover Art 1983
$10.00
Time Remaining: 2h 42m
Buy It Now for only: $10.00
1980 Marvel Comics SPIDER MAN  THE FANTASTIC FOUR 100 1st Appearance of Karma
1980 Marvel Comics SPIDER MAN THE FANTASTIC FOUR 100 1st Appearance of Karma
$7.60
Time Remaining: 2h 43m
Buy It Now for only: $7.60
Marvel Super Heroes 92 Signed by Roy Thomas W COA 1st Appearance Doc Samson
Marvel Super Heroes 92 Signed by Roy Thomas W COA 1st Appearance Doc Samson
$19.99
Time Remaining: 2h 44m
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LUKE CAGE POWER MAN 19 HERO FOR HIRE 1ST APPEARANCE OF COTTONMOUTH FROM TV SHOW
LUKE CAGE POWER MAN 19 HERO FOR HIRE 1ST APPEARANCE OF COTTONMOUTH FROM TV SHOW
$16.00 (2 Bids)
Time Remaining: 2h 46m
RICHARD DRAGON KUNG FU FIGHTER 1975 1 ORIGIN AND 1ST APPEARANCE
RICHARD DRAGON KUNG FU FIGHTER 1975 1 ORIGIN AND 1ST APPEARANCE
$14.99
Time Remaining: 2h 47m
AVENGERS 196 Marvel June 1980 1st First Full TASKMASTER Appearance
AVENGERS 196 Marvel June 1980 1st First Full TASKMASTER Appearance
$39.94
Time Remaining: 2h 47m
Buy It Now for only: $39.94
X Men 101 1976 CGC Graded 90 Origin  1st Appearance Phoenix Dave Cockrum
X Men 101 1976 CGC Graded 90 Origin 1st Appearance Phoenix Dave Cockrum
$549.95
Time Remaining: 2h 55m
Vintage Batmans detective comic book 466 1st appearance Signalman DC superhero
Vintage Batmans detective comic book 466 1st appearance Signalman DC superhero
$12.00
Time Remaining: 3h 2m
Buy It Now for only: $12.00
AVENGERS ANNUAL 10 1981 1st APPEARANCE OF ROGUE CAROL DANVERS CAMEO VF+
AVENGERS ANNUAL 10 1981 1st APPEARANCE OF ROGUE CAROL DANVERS CAMEO VF+
$65.00
Time Remaining: 3h 7m
Buy It Now for only: $65.00
LUKE CAGE POWER MAN 24 1st BLACK GOLIATH Appearance Mid Grade 1975 Marvel
LUKE CAGE POWER MAN 24 1st BLACK GOLIATH Appearance Mid Grade 1975 Marvel
$39.94
Time Remaining: 3h 11m
Buy It Now for only: $39.94
SPECTACULAR SPIDER MAN 4 1977 Reader 1st appearance of The Hitman Marvel
SPECTACULAR SPIDER MAN 4 1977 Reader 1st appearance of The Hitman Marvel
$6.00
Time Remaining: 3h 11m
Buy It Now for only: $6.00
MARVEL AGE 6 Cloak and Dagger Cover 1983 1st First BETA RAY BILL APPEARANCE
MARVEL AGE 6 Cloak and Dagger Cover 1983 1st First BETA RAY BILL APPEARANCE
$19.94
Time Remaining: 3h 12m
Buy It Now for only: $19.94
THE ETERNALS 1 MARVEL COMICS 1976 UNREAD JACK KIRBY 1ST APPEARANCE THE ETERNALS
THE ETERNALS 1 MARVEL COMICS 1976 UNREAD JACK KIRBY 1ST APPEARANCE THE ETERNALS
$17.16 (9 Bids)
Time Remaining: 3h 17m
X Men 158 1st Appearance Rogue in X Men key issue High Grade
X Men 158 1st Appearance Rogue in X Men key issue High Grade
$19.99
Time Remaining: 3h 21m
Buy It Now for only: $19.99
The ETERNALS 6 KIRBY Marvel 1st Appearance Gammenon FN VF
The ETERNALS 6 KIRBY Marvel 1st Appearance Gammenon FN VF
$4.89
Time Remaining: 3h 24m
Superboy  76 Strict VG FN+ 1st Appearance Super Monkey Appearance Superbaby
Superboy 76 Strict VG FN+ 1st Appearance Super Monkey Appearance Superbaby
$66.00
Time Remaining: 3h 26m
Buy It Now for only: $66.00
The DEMON 1 DC Bronze Age Key 1st Appearance of Etrigan HIGH GRADE VF NM to NM
The DEMON 1 DC Bronze Age Key 1st Appearance of Etrigan HIGH GRADE VF NM to NM
$324.94
Time Remaining: 3h 27m
Buy It Now for only: $324.94
DC SUPER STARS 17 Origin 1st appearance of THE HUNTRESS
DC SUPER STARS 17 Origin 1st appearance of THE HUNTRESS
$20.00
Time Remaining: 3h 31m
Giant Size Defenders 3 1st Appearance Korvac
Giant Size Defenders 3 1st Appearance Korvac
$22.99
Time Remaining: 3h 31m
Buy It Now for only: $22.99
All Star Comics No58 Super Squad 1st Appearance of Power Girl DC Comics 1976
All Star Comics No58 Super Squad 1st Appearance of Power Girl DC Comics 1976
$32.00 (5 Bids)
Time Remaining: 3h 34m
Superboy  141 Strict VF Content Full length story 1st Appearance Ron Avon
Superboy 141 Strict VF Content Full length story 1st Appearance Ron Avon
$35.00
Time Remaining: 3h 44m
Buy It Now for only: $35.00