Judge Dredd, Adam Strange and She-Hulk

 

Three quite different heroes from three different comic universes thrown together in one wild adventure - I'd read it, just to find out what's going on!  It would be fun to see all of their personalities clash.

Superman and Rick Jones

 

I'm a little surprised that we have not heard from Rick Jones in the MCU.  With strong ties to The Hulk, Captain Marvel and The Avengers, he's one of Marvel's most enduring supporting characters, and it would be cool to see him find a place on the big or small screen.  Maybe the lack of solo Hulk projects has been a problem, not to mention all but writing Mar-Vell out of existence in favor of skipping right to Carol Danvers.