9anime.to is the best there is. Has an absolutely massive catalog of TV, OVA, and Movie releases. Streams are almost always very high quality. Idk about 4K support, but most shows are 1080p. Make sure you use a very good ad and pop-up blocker, the site is loaded with them. On mobile I use adblock browser and it works perfectly.

I was using zoro.to for a while. I don’t know if it’s still working or not

animepahe.ru has a good selection at high qualities imo

Zoro.to is my go to

Consider ddling through xdcc as an alternative to torrenting if you don't have a vpn. Quality will likely be better than you can find on any streaming site.

theindex(dot)moe

Before I could afford Crunchyroll I used animefreak.tv, which was just ok. Quality varried, website stability was questionable, and I remember once getting to the last ep of season 4 and the subs were randomly in vietnamese for just that episode. We watched the whole thing through google instant translate so we could understand what was happening.

Try Zoro dot to that's my go to for streaming