Uncanny X-Men #25 Pete Woods Doom Homage Variant and Iron Man #150 (1981).
Venom #255 Andrei Bressan Doom Homage Variant and Dazzler #3 (1981).
Cyclops #2 Dave Johnson Doom Homage Variant and What if... Dr. Doom had become the Thing? #1 (2004).
The Infernal Hulk #5 Skan Srisuwan Doom Homage Variant and One World Under Doom #1 (2025).
Storm: Earth's Mightiest Mutant #2 Taurin Clarke Doom Homage Variant inspired by either Uncanny X-Men #145 (1981) or X-Men Classic (1990) ...more likely the former, with elements taken from the latter (Doom's pose).
The Mortal Thor #8 Dave Wachter Doom Homage Variant almost certainly inspired by The Amazing Spider-Man #61 (2024), which itself appears to be based on Fantastic Four #39 (1965). They're basically identical, so it more likely references ASM #61 rather than FF #39 🤔
The Avengers #36 Cory Smith Doom Homage Variant and Fantastic Four #247 (1982)