Red (Rage):
Hulk (Bruce Banner)
Orange (Greed):
Loki Laufeyson
Yellow (Fear):
Doctor Victor von Doom
Green (Willpower):
Captain America (Steve Rogers)
OR
Spider-Man (Peter Parker)
Blue (Hope):
Spider-Man (Peter Parker)
Indigo (Compassion):
Carnage (Cletus Kasady)
Star Sapphire (Love):
Scarlet Witch (Wanda Maximoff)
White (Life):
Phoenix (Jean Grey)
Black (Death):
Thanos
Gold (Justice/Joy):
Spider-Man (Miles Morales)
Explanations:
I'd imagine most of these are pretty obvious, but I'd like to explain that Carnage is the Indigo Lantern because of how little compassion he had, because the way the Indigo Tribe chooses members is based on how little compassion they have, so then, when they join the tribe they are then forcefully redeemed and given that compassion, and that empathy, hence Carnage being my choice, and Doom was chosen for Yellow because Yellow Lanterns get their power from the fear they instill in others, not their own fear
BONUS:
Spider-Man (Peter Parker) as both a Green and Blue Lantern
oh yeah all these edits were made by me