Well if you're interested, this guy's channel explains what's wrong currents comics. here's his most recent video about Riri (Ironheart):

I checked about some of those, and Ironheart (the black girl supposedly replacing Tony) is only filling in the role while Tony's in a coma; he could well come out of it, return to being Iron Man, and she could be a derivative character like She-Hulk to Hulk. What's more, Dr Doom is more of an Iron Man replacement right now, having made a very similar suit, and going around calling himself that, to honor Tony's legacy, since Doom recently decided to give Good a chance, and Tony helped him out with that. As for Spider Man, I checked the Marvel database, and unless you're talking about the time he was possessed by Dr Octopus, I don't see what you mean. I'm HOPING they undo what the Cosmic Cube did to Captain America, but we'll see. Personally, I only occasionally read Marvel comics, and it's generally only the Deadpool ones; I much prefer 2000AD comics.