Come across this site which basically translates DnD into the hero system, and got the idea to run a fantasy game (perhaps just a DnD setting), just using the hero system. Had a great GM run a Hero system game where the setting was the game of thrones universe, and each player was given one superpower to use. Hero system was used for combat and for modeling the superpowers, and everything went incredibly smoothly! I would prefer to have the game ran over Discord for how well it accommodates either voice communication, or a PbP format (or heck, just having people get together for a few hours and make back-to-back posts via text, but at the speed of a live game), with roll20 used for when we need a map during combat or some such.