I mean, the answer kinda just has to be something like Call of Duty to make sense. Think about how much evolution that series has gone through over the years, and how many components there are between campaign, multiplayer, Zombies, spec ops, battle royale, and most recently DMZ. It’s probably the most variety you’d get from just one franchise.
Except they have outright removed a bunch. All but two of the r/TIHI mods were purged, as an example.