I wouldn’t be so hopeful, Twitch has pretty much remained unbeaten and the only “ad block” solution I’ve found still gives a 30 second interruption of the stream, it just doesn’t show the ad anymore. It’s why I don’t use the site anymore, even with Twitch Turbo as an option these days.
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.