Proton is based. I paid so I get great speeds. Even the free version has a dedicated port for torrents to help with speeds.
Cryptostorm it better for privacy but you have to use crypto which can still eventually be tracked.
Mullvad will take cash, making it the most secure, just don't send it with a return address.
If they aren't advertising, its a good place to start. Just read the terms and services for logging.