Star Wars Anthology

Disney's got five films lined up currently for their Star Wars franchise-the three episodes, then the two spin offs, the current "Rogue One" that's now filming and the upcoming Han Solo film. The spin offs are called "Star Wars Anthology" and reportedly will tackle some of the more unknown Star Wars lore and character origins...Rogue One dealing with the Death Star plans, and the Han Solo film dealing with Han's origin, including possibly how he met Chewbacca (and perhaps Boba Fett). An Obi-Wan Kenobi film has also been rumored although no official word on that. So what topics/characters should the new films tackle next?