My family still has netflix so I use that sometimes. But... most of the time I'll download from a few places for movies:
- rarbg, though the original went down I found a new one at https://therarbg.com/
- yts, again the original went down but I've been using https://yts.mx/ which is fantastic.
- stremio. set it up with some plugins and it's pretty useful.
- this one is a little weird but https://databasegdriveplayer.xyz/player.php?imdb= I have a browser extension to pop up the relevant link on the imdb page, so I can just click that. not always best quality, but for some rarer titles it really does end up helping.
for client I've always really used transmission. it's small, comfy, works.