Yes to all yours! I am making my list with yours in mind OP.
Guardians of the Galaxy (Introduces Star-Lord, Gamora, Adam Warlock, Rocket Raccoon, Groot, Cosmo and Quasar.)
X-Men: Days of Future Past (a faithful adaptation with Kitty Pride being the time traveler. Introduces Scarlet Witch and Quick Silver in the Brotherhood of Mutants before they heel-face turn to the Avengers initiative.)
Captain Marvel (Carol Danvers, Northstar as her co-pilot who gets caught up in whatever alien energy Carol was exposed too and becomes a supporting hero in the new MCU in the vain of Black Widow. The Kree as baddies. A short appearance by Kamala)
Fantastic Four (A research team composed of Sue Storm, Johnny Storm, Reed Richards and The Thing are sent to investigate life beyond the stars after what happened to Danvers. Skrulls as bad guys. Introduces Victor Von Doom pre-Doctor Doom)
Thor (introducing Thor, Sif, the warriors three, jane foster and Loki. Loki gets turned into a kid by Odin and forced to live on Earth as punishment for being the bad guy.)
Avengers (consisting of Thor, Iron Man, Cap America, Cap Marvel, Black Widow, Ant-Man, Northstar [It's going to be ten years in the future, I think it will be chill to have an openly gay character in a superhero movie] and Wasp. Faithful adaptation of Ultron story line)
Incredible Hulk (Bruce Banner, thunderbolt Ross, Betty Ross and The Leader as bad guy.)
Young Avengers (Wiccan, Hulking [A young skrull soldier who did a heel face turn in the rebooted Fantastic Four?], Kid Loki, Ms. Marvel [Kamala], Kate Bishop and a younger version of a popular x-men character like Ice-Man or Nightcrawler.)
Avengers and X-men cross over: House of M.
Avengers, X-men and Guardians of the Galaxy cross over: Galactus