seedbox.io and seedboxes.cc are my two personal choices. I personally think seedbox.io is faster when bringing the files down via FTP to your local drives. But Seedboxes.cc is just as fast as seedbox.io for seedbox speeds. I get unmetered traffic on Up/Down with seedbox.io, seedboxes.cc gives you a healthy upload traffic though. I don't think you can go wrong with seedboxes.cc if you're new to seedboxes and as @starrdust mentioned, on a tight budget.

cheers!