Install BiglyBT from fdroid. That is a torrent downloader for android. It has a search function to find torrents. Or you can search torrents using any number of websites.

As for quality and size… At this point in your journey you’ll have to sort and filter manually for those.

Also, you won’t find many guides for android and everything does lean heavy on PC. So if you can afford it eventually get yourself a cheap laptop, it’ll make things much easier for you.

Hopefully you have better luck with the batteries than I did

RIP in peace Pebble

Last I knew this worked with vlc also, no ads