Exactly... The GazelleGames right now is one of the best trackers not only about pc games but about every Platform games. I would say even better than the Old legendary (not the new fake one "V2") Bitgamer (RIP). Many exclusives games get uploaded there and some you can't find anywhere else.
What's sad though is, private game trackers are very rare in these days... I still remember the old good time having some niche games trackers like Blackcats, Bitgamer, undergroundgamer.

So back on topic now. I can't recommend anything else than Gazzele though.