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

Marvel Team up 66 1978 VF VF+ 1ST US CAPTAIN BRITAIN APP KEY APPEARANCE
Marvel Team up 66 1978 VF VF+ 1ST US CAPTAIN BRITAIN APP KEY APPEARANCE
$6.83 (4 Bids)
Time Remaining: 35m
DAREDEVIL 194 NM  1st Appearance of Nahum Jenk 1983 Marvel Kingpin App
DAREDEVIL 194 NM 1st Appearance of Nahum Jenk 1983 Marvel Kingpin App
$5.28
Time Remaining: 37m
Buy It Now for only: $5.28
DAREDEVIL 195 NM  1st Appearance of Tarkington Brown Tony Stark Appearance
DAREDEVIL 195 NM 1st Appearance of Tarkington Brown Tony Stark Appearance
$5.28
Time Remaining: 43m
Buy It Now for only: $5.28
BATMAN 360 CGC 92 SS DOUG MOENCH  ED HANNIGAN 1st appearance Savage Skull
BATMAN 360 CGC 92 SS DOUG MOENCH ED HANNIGAN 1st appearance Savage Skull
$51.00 (13 Bids)
Time Remaining: 57m
MARVEL TEAM UP  96 Spider Man HOWARD the DUCK 1st Status Quo Appearance 1980
MARVEL TEAM UP 96 Spider Man HOWARD the DUCK 1st Status Quo Appearance 1980
$0.99
Time Remaining: 1h 1m
MARVEL TEAM UP  95 Spider Man MOCKINGBIRD 1st Carl Delandan Appearance 1980
MARVEL TEAM UP 95 Spider Man MOCKINGBIRD 1st Carl Delandan Appearance 1980
$7.00 (6 Bids)
Time Remaining: 1h 7m
AVENGERS ISSUE 196 CGC 94 W PAGES 1ST appearance of TASKMASTER MARVEL COMICS
AVENGERS ISSUE 196 CGC 94 W PAGES 1ST appearance of TASKMASTER MARVEL COMICS
$165.00
Time Remaining: 1h 16m
MARVEL TEAM UP  93 Spider Man WEREWOLF 1st Dansen Macabre Appearance 1980
MARVEL TEAM UP 93 Spider Man WEREWOLF 1st Dansen Macabre Appearance 1980
$0.99
Time Remaining: 1h 18m
MARVEL TEAM UP  92 Spider Man HAWKEYE 1st Mister FEAR Appearance Bronze 1980
MARVEL TEAM UP 92 Spider Man HAWKEYE 1st Mister FEAR Appearance Bronze 1980
$0.99
Time Remaining: 1h 25m
BATMAN 232 VG 1st Appearance Ras al Ghul Neal Adams + det 411 1st taliasale
BATMAN 232 VG 1st Appearance Ras al Ghul Neal Adams + det 411 1st taliasale
$299.99
Time Remaining: 1h 26m
Buy It Now for only: $299.99
The Cat 1 nice origin  1st appearance Cat later becomes Tigra 1972 Marvel
The Cat 1 nice origin 1st appearance Cat later becomes Tigra 1972 Marvel
$39.99
Time Remaining: 1h 36m
Buy It Now for only: $39.99
MARVEL TEAM UP  89 Spider Man NIGHTCRAWLER 1st CUTTHROAT Appearance 1980 Arcade
MARVEL TEAM UP 89 Spider Man NIGHTCRAWLER 1st CUTTHROAT Appearance 1980 Arcade
$0.99 (1 Bid)
Time Remaining: 1h 43m
Incredible Hulk King Size Annual 6 CGC 85 VF+ 1st Appearance Paragon Her Ayesha
Incredible Hulk King Size Annual 6 CGC 85 VF+ 1st Appearance Paragon Her Ayesha
$85.00
Time Remaining: 2h 14m
Buy It Now for only: $85.00
The Invaders 17  18 45 VG+ 55 FN  1st appearance Warrior Woman  Nazi
The Invaders 17 18 45 VG+ 55 FN 1st appearance Warrior Woman Nazi
$1.00
Time Remaining: 2h 20m
DOCTOR STRANGE 1 NM 92 NM 94 1ST APPEARANCE OF THE SILVER DAGGER 1974
DOCTOR STRANGE 1 NM 92 NM 94 1ST APPEARANCE OF THE SILVER DAGGER 1974
$275.00
Time Remaining: 2h 50m
Buy It Now for only: $275.00
The Avengers 121 Comic Book VG 1974 Taurus 1st appearance
The Avengers 121 Comic Book VG 1974 Taurus 1st appearance
$4.99
Time Remaining: 4h 6m
Buy It Now for only: $4.99
Amazing Spider Man 162 1st Jigsaw Early Punisher Appearance Nov 1976 92 NM
Amazing Spider Man 162 1st Jigsaw Early Punisher Appearance Nov 1976 92 NM
$75.00
Time Remaining: 4h 20m
Buy It Now for only: $75.00
OMAC One Man Army 1 1st Appearance  Origin VF NM JACK KIRBY DC COMICS 1974 NR
OMAC One Man Army 1 1st Appearance Origin VF NM JACK KIRBY DC COMICS 1974 NR
$45.00
Time Remaining: 4h 21m
Buy It Now for only: $45.00
The Defenders 28 PGX Not CGC 75 1st full appearance of StarhawkKEY ISSUEGOTG
The Defenders 28 PGX Not CGC 75 1st full appearance of StarhawkKEY ISSUEGOTG
$49.99
Time Remaining: 4h 45m
CBCS 98 UNCANNY X MEN 148 MARVEL COMICS 8 1981 MAGNETO 1ST APPEARANCE CALIBAN
CBCS 98 UNCANNY X MEN 148 MARVEL COMICS 8 1981 MAGNETO 1ST APPEARANCE CALIBAN
$149.99
Time Remaining: 6h 10m
Buy It Now for only: $149.99
Shazam 1 CGC 96 1st Captain Marvel Appearance since Golden Age NEW
Shazam 1 CGC 96 1st Captain Marvel Appearance since Golden Age NEW
$329.00
Time Remaining: 6h 47m
Buy It Now for only: $329.00
Iron Man 114 Marvel 1st appearance of Arsenal
Iron Man 114 Marvel 1st appearance of Arsenal
$5.00
Time Remaining: 7h 8m
Buy It Now for only: $5.00
Amazing Spider Man 208 NM Near Mint First 1st Appearance Of Fusion
Amazing Spider Man 208 NM Near Mint First 1st Appearance Of Fusion
$19.99
Time Remaining: 7h 9m
Buy It Now for only: $19.99
KEY ISSUE WONDER WOMAN 202 1972 1st FAFHRD + GRAY MOUSER Appearance
KEY ISSUE WONDER WOMAN 202 1972 1st FAFHRD + GRAY MOUSER Appearance
$19.95
Time Remaining: 8h 53m
Buy It Now for only: $19.95
Detective Comics 440 strict FN VF+ 1st appearance New Manhunter by Simonson
Detective Comics 440 strict FN VF+ 1st appearance New Manhunter by Simonson
$38.25
Time Remaining: 9h 1m
Buy It Now for only: $38.25
Detective Comics 471 strict VF+ 1st appearance Hugo Strange in the bronze age
Detective Comics 471 strict VF+ 1st appearance Hugo Strange in the bronze age
$32.50
Time Remaining: 9h 1m
Buy It Now for only: $32.50
Showcase  62 strict VF 1st appearance The Inferior Five
Showcase 62 strict VF 1st appearance The Inferior Five
$68.00
Time Remaining: 9h 1m
Buy It Now for only: $68.00
Iron Man 166  Over the Edge  1st full appearance of Obadiah Stane
Iron Man 166 Over the Edge 1st full appearance of Obadiah Stane
$6.00
Time Remaining: 9h 14m
Buy It Now for only: $6.00
ROM 17 1st Print X Men Appearance Marvel 1981 VF
ROM 17 1st Print X Men Appearance Marvel 1981 VF
$15.00
Time Remaining: 9h 32m
FOREVER PEOPLE 4 KEY DC BRONZE AGE HIGH GRADE 1ST APPEARANCE SONNY SUMO DESAAD
FOREVER PEOPLE 4 KEY DC BRONZE AGE HIGH GRADE 1ST APPEARANCE SONNY SUMO DESAAD
$50.00
Time Remaining: 9h 42m
Buy It Now for only: $50.00
OMAC 1 DC Comics 1974 Origin  1st appearance of OMAC FN+ Jack Kirby art
OMAC 1 DC Comics 1974 Origin 1st appearance of OMAC FN+ Jack Kirby art
$11.99
Time Remaining: 9h 52m
Buy It Now for only: $11.99
Iron Man 55 CGC 65 1st appearance Thanos Drax
Iron Man 55 CGC 65 1st appearance Thanos Drax
$661.48
Time Remaining: 10h 10m
Buy It Now for only: $661.48
Avengers 85 CGC 70 Silver age 1st appearance Squadron Supreme 2 71
Avengers 85 CGC 70 Silver age 1st appearance Squadron Supreme 2 71
$40.00
Time Remaining: 10h 29m
Buy It Now for only: $75.00
Jonah Hex  6 strict VG 1st appearance The Sin Killer
Jonah Hex 6 strict VG 1st appearance The Sin Killer
$10.00
Time Remaining: 10h 34m
Buy It Now for only: $10.00
Iron Man  183 strict VF NM 1st appearance Taurus
Iron Man 183 strict VF NM 1st appearance Taurus
$8.00
Time Remaining: 10h 34m
Buy It Now for only: $8.00
New Teen Titans 22 1st Appearance Blackfire DC 1982 NM 94
New Teen Titans 22 1st Appearance Blackfire DC 1982 NM 94
$1.99 (2 Bids)
Time Remaining: 10h 36m
Iron Man  178 strict NM 1st appearance Gretl Anders
Iron Man 178 strict NM 1st appearance Gretl Anders
$6.00
Time Remaining: 10h 38m
Buy It Now for only: $6.00
Plastic Man 5 strict FN 60 Appearance Assassin pay 1st shipping fee
Plastic Man 5 strict FN 60 Appearance Assassin pay 1st shipping fee
$15.00
Time Remaining: 10h 39m
Buy It Now for only: $15.00
Iron Man  166 strict NM 1st appearance Obadiah Stane
Iron Man 166 strict NM 1st appearance Obadiah Stane
$8.00
Time Remaining: 10h 48m
Buy It Now for only: $8.00
X Men 109 CGC 92 Marvel1978 1st Appearance of Weapon Alpha RARE Wolverine
X Men 109 CGC 92 Marvel1978 1st Appearance of Weapon Alpha RARE Wolverine
$246.85
Time Remaining: 10h 57m
Buy It Now for only: $246.85