As everyone has said, lossless compression might not have great ratios, but if it’s still worth it I recommend dwarfs as it creates read only mountable filesystems with minimal setup https://github.com/mhx/dwarfs

Pretty big in my experience

This team surprises me every time😁

pirate bay is alright, I managed to find metástasis on there a while ago but if you’re looking for something in English 1337x.to is probably your best bet.