Stremio, imo is the best. Shit just works with no hassles and with very minimal setup with torrentio and some catalogs. I also like some anime specific apps like dantotsu, aniyomi, mihon on android with aniyomi extensions repo

When it comes to torrents and private trackers, Nyaa.si,Mam, Ipt and TL are my go to.

Soulseek is great

Sportscult is a great private tracker for all the sports content, gets regularly updated. For streaming, Check out dramalive for android, its pretty great