usenet for bulk current media, occasionally torrents for niche stuff, but now that rarbg is gone I'm going to have to find a new tracker. I use a seedbox for most torrent activity these days as well, too risky with ISPs clamping down.
Once upon a time I used DC++ for things, but that was more than a decade ago and the last time I tried it all the severs seems to be in eastern eu countries and very shady. If anyone knows a good DC++ server I'd love to hear more.