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

Special Marvel Edition 15 CGC 90 1st Appearance Of Shang Chi FREE PRIORITY S H
Special Marvel Edition 15 CGC 90 1st Appearance Of Shang Chi FREE PRIORITY S H
$260.00
Time Remaining: 51m
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Fantastic Four 209 FN 1st Appearance of Herbie The Robot Byrne Art Marvel Comic
Fantastic Four 209 FN 1st Appearance of Herbie The Robot Byrne Art Marvel Comic
$2.69
Time Remaining: 59m
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E MAN 1 Charlton Comics 1973 Origin  1st appearance FN+ Joe Staton art
E MAN 1 Charlton Comics 1973 Origin 1st appearance FN+ Joe Staton art
$12.99
Time Remaining: 1h 16m
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Marvel Comics Ms Marvel 18 VF 1st Full Appearance Mystique
Marvel Comics Ms Marvel 18 VF 1st Full Appearance Mystique
$99.99
Time Remaining: 1h 20m
IRON FIST 5 Marvel Comics 1976 1st appearance SCIMITAR FN John Byrne art
IRON FIST 5 Marvel Comics 1976 1st appearance SCIMITAR FN John Byrne art
$7.99
Time Remaining: 1h 24m
Buy It Now for only: $7.99
UNCANNY X MEN 125 1ST APPEARANCE PROTEUS MUTANT X PHOENIX KEY GLOSSY
UNCANNY X MEN 125 1ST APPEARANCE PROTEUS MUTANT X PHOENIX KEY GLOSSY
$69.99
Time Remaining: 1h 25m
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THE Man Thing 1st series 1979 1 2nd appearance of Howard the Duck COMIC BOOK
THE Man Thing 1st series 1979 1 2nd appearance of Howard the Duck COMIC BOOK
$29.99
Time Remaining: 1h 25m
Buy It Now for only: $29.99
ROM 1 1st Appearance of ROM Frank Miller cover
ROM 1 1st Appearance of ROM Frank Miller cover
$14.99
Time Remaining: 2h 13m
The Eternals 1 Bronze Age Marvel Comic Book 1st Appearance VG FN
The Eternals 1 Bronze Age Marvel Comic Book 1st Appearance VG FN
$17.05
Time Remaining: 2h 48m
Buy It Now for only: $17.05
SHAZAM 28 DC Bronze Age Key Issue 1st BLACK ADAM Appearance 1977
SHAZAM 28 DC Bronze Age Key Issue 1st BLACK ADAM Appearance 1977
$123.15
Time Remaining: 3h 10m
Buy It Now for only: $123.15
KOBRA 1 DC COMICS 1976 VF NM 1st APPEARANCE JACK KIRBY MARCOS
KOBRA 1 DC COMICS 1976 VF NM 1st APPEARANCE JACK KIRBY MARCOS
$14.50
Time Remaining: 3h 19m
Buy It Now for only: $14.50
1st ISSUE SPECIAL LOT 5  8 1st APPEARANCE OF WARLORD  KIRBYS MANHUNTER
1st ISSUE SPECIAL LOT 5 8 1st APPEARANCE OF WARLORD KIRBYS MANHUNTER
$13.95
Time Remaining: 3h 19m
Buy It Now for only: $13.95
Green Lantern 141 NM 94 1st Appearance Omega Men George Perez cover
Green Lantern 141 NM 94 1st Appearance Omega Men George Perez cover
$64.00
Time Remaining: 3h 52m
Buy It Now for only: $64.00
Amazing Spider Man 129 CGC 60 1st Appearance of Punisher 1974
Amazing Spider Man 129 CGC 60 1st Appearance of Punisher 1974
$1,500.00
Time Remaining: 4h 10m
Marvel Premiere 15 1974 1st Iron Fist Appearance High Grade CGC 96 BP607
Marvel Premiere 15 1974 1st Iron Fist Appearance High Grade CGC 96 BP607
$1,664.95
Time Remaining: 4h 11m
Buy It Now for only: $1,664.95
X Men 120 CGC 85 W 1st appearance of Alpha Flight
X Men 120 CGC 85 W 1st appearance of Alpha Flight
$98.95
Time Remaining: 4h 15m
Buy It Now for only: $98.95
Marvel Nova 1 1976 Key 1st Appearance High Grade Bronze Age CGC 96 BP576
Marvel Nova 1 1976 Key 1st Appearance High Grade Bronze Age CGC 96 BP576
$249.95
Time Remaining: 4h 16m
Buy It Now for only: $249.95
Omega Men 1 4 Issue 3 Signed 1st Appearance LOBO
Omega Men 1 4 Issue 3 Signed 1st Appearance LOBO
$50.00
Time Remaining: 4h 16m
Strange Tales 180 First Printing Comic Book 1st Appearance of Gamora
Strange Tales 180 First Printing Comic Book 1st Appearance of Gamora
$74.95
Time Remaining: 4h 23m
Buy It Now for only: $74.95
Fantastic Four 45 First Printing Comic Book 1st appearance of the Inhumans
Fantastic Four 45 First Printing Comic Book 1st appearance of the Inhumans
$299.95
Time Remaining: 4h 23m
Buy It Now for only: $299.95
Super Friends 7 1976 First Printing DC Comic Book 1st Appearance of Wonder Twins
Super Friends 7 1976 First Printing DC Comic Book 1st Appearance of Wonder Twins
$89.95
Time Remaining: 4h 24m
Buy It Now for only: $89.95
X Men 244 First Printing Original Comic Book 1st Appearance of Jubilee
X Men 244 First Printing Original Comic Book 1st Appearance of Jubilee
$74.95
Time Remaining: 4h 24m
Buy It Now for only: $74.95
New Teen Titans 2 1980 First Printing DC Comic Book 1st Appearance Deathstroke
New Teen Titans 2 1980 First Printing DC Comic Book 1st Appearance Deathstroke
$174.95
Time Remaining: 4h 24m
Buy It Now for only: $174.95
Incredible Hulk 180 1974 1st Print Marvel Comic First Appearance of Wolverine
Incredible Hulk 180 1974 1st Print Marvel Comic First Appearance of Wolverine
$449.95
Time Remaining: 4h 25m
Buy It Now for only: $449.95
Avengers 181 Comic Book LOT of 4 1st Printings 1st Appearance of Antman
Avengers 181 Comic Book LOT of 4 1st Printings 1st Appearance of Antman
$139.95
Time Remaining: 4h 25m
Buy It Now for only: $139.95
Epic Illustrated 3 First Printing Comic Book 1st appearance of Dreadstar
Epic Illustrated 3 First Printing Comic Book 1st appearance of Dreadstar
$79.95
Time Remaining: 4h 25m
Buy It Now for only: $79.95
What If 10 First Printing Comic Book 1st Appearance of Jane Foster as Thor
What If 10 First Printing Comic Book 1st Appearance of Jane Foster as Thor
$44.95
Time Remaining: 4h 25m
Buy It Now for only: $44.95
Uncanny X Men 266 Comic Book 1st Printing First Appearance of Gambit
Uncanny X Men 266 Comic Book 1st Printing First Appearance of Gambit
$199.95
Time Remaining: 4h 25m
Buy It Now for only: $199.95
Daredevil 131 First Printing Marvel Comic Book 1st Appearance of Bullseye
Daredevil 131 First Printing Marvel Comic Book 1st Appearance of Bullseye
$144.95
Time Remaining: 4h 25m
Buy It Now for only: $144.95
X Men 130 First Printing 1980 Comic Book 1st Appearance of Dazzler
X Men 130 First Printing 1980 Comic Book 1st Appearance of Dazzler
$74.95
Time Remaining: 4h 25m
Buy It Now for only: $74.95
Marvel Comics Marvel Chillers 1 VG+ 1st appearance of Modred the Mystic
Marvel Comics Marvel Chillers 1 VG+ 1st appearance of Modred the Mystic
$2.99
Time Remaining: 4h 25m
1ST ISSUE SPECIAL 12 STARMAN FIRST APPEARANCE FN VF 70
1ST ISSUE SPECIAL 12 STARMAN FIRST APPEARANCE FN VF 70
$4.50
Time Remaining: 4h 30m
Buy It Now for only: $9.00
All Star Squadron 23 1st appearance Amazing Man 24 25 1st Nuklon 26 27 28
All Star Squadron 23 1st appearance Amazing Man 24 25 1st Nuklon 26 27 28
$24.00
Time Remaining: 4h 38m
Buy It Now for only: $24.00
ROM  1  1979 VF ORIGIN  1st APPEARANCE
ROM 1 1979 VF ORIGIN 1st APPEARANCE
$13.50 (9 Bids)
Time Remaining: 4h 42m
Marvel Super Special Magazine 10 1st Appearance of Star Lord in Color LOT of 3
Marvel Super Special Magazine 10 1st Appearance of Star Lord in Color LOT of 3
$99.99
Time Remaining: 4h 44m
Buy It Now for only: $99.99
SHOGUN WARRIORS  1  1979 VF 1st APPEARANCE
SHOGUN WARRIORS 1 1979 VF 1st APPEARANCE
$0.50
Time Remaining: 4h 48m
MARVEL TEAM UP 65 Grade 60 1st US appearance of CAPTAIN BRITAIN
MARVEL TEAM UP 65 Grade 60 1st US appearance of CAPTAIN BRITAIN
$50.00
Time Remaining: 4h 52m
Buy It Now for only: $50.00
X men 122 CBCS 92 White 1st Mastermind Jason Wyngarde Luke Cage appearance
X men 122 CBCS 92 White 1st Mastermind Jason Wyngarde Luke Cage appearance
$105.00
Time Remaining: 4h 58m
Buy It Now for only: $105.00
Invaders 7 1975 1st Series FN+ 1st Appearance of Baron Blood
Invaders 7 1975 1st Series FN+ 1st Appearance of Baron Blood
$12.99
Time Remaining: 5h 4m
Buy It Now for only: $12.99
Uncanny X Men 244 Marvel 1989 Classic Copper Age 1st Appearance Jubilee NM
Uncanny X Men 244 Marvel 1989 Classic Copper Age 1st Appearance Jubilee NM
$50.00
Time Remaining: 5h 9m
Buy It Now for only: $50.00