I've used and can highly recommend both Mullvad and IVPN. Both of these promise not to keep logs, both have anon signup (no email), both accept Monero, and both have tons of features.
A new one to keep an eye on is Obscura. They don't just promise not to keep logs, they can't keep logs. They also accept Monero, and have anon signup. The drawback currently is that Obscura is not as feature rich as Mullvad or IVPN. One feature I'm already missing with Obscura is a split tunnel. Obscura is also more expensive than Mullvad or IVPN.
I've used and can highly recommend both Mullvad and IVPN. Both of these promise not to keep logs, both have anon signup (no email), both accept Monero, and both have tons of features.
A new one to keep an eye on is Obscura. They don't just promise not to keep logs, they can't keep logs. They also accept Monero, and have anon signup. The drawback currently is that Obscura is not as feature rich as Mullvad or IVPN. One feature I'm already missing with Obscura is a split tunnel. Obscura is also more expensive than Mullvad or IVPN.