I play Marvel Rivals almost every day. Compared to Overwatch, it’s more casual and fun oriented, not that balanced at all. And its in third person, not first person. While Rivals has some Overwatch energy and can be played as a replacement, it is not a full replacement. And no other of these games will probably reach peak Overwatch and does not have the same charm.

BTW I recently installed Team Fortress 2 Classified, a mod that got its own Steam store page. It has lot of stuff from early TF2 days recreated and looks very interesting. Still need to try it out.