Yep.

https://mullvad.net/en/

Many servers. Can pay with bitcoin. You only get a randomized account number. /128 subnet for IPv6.

https://www.azirevpn.com/

A bit less servers. No need to give email. /64 subnet for IPv6.

Mullvad also doesn't require an email, and you can mail them cash anonymously.

Yep. And the service with both of these is top notch.

Talked to some of the guys at a conference. They are really nice and they are doing a lot with Wireguard, helping if financially as well.

Yes, see https://mullvad.net/en/guides/category/wireguard/