Context for map lore and skins?

The ones that interest me are all the maps, Reed’s skin, Susan’s skin (lord have mercy), Hulk’s skin (the stuff that I know is that he gets his bower from the One Below or something and that he got raped for being too strong? I might me misinformed though), Both of Strange’s skins and Star Lord’s Sun God skin.

I’m not expecting any of you to know all of these so pick the ones you know. Also feel free to explain the lore of anything else in the game if you want to. Just in advance I’ll thank you guys on behalf of all the lore enjoyers!