Decent enough site once you use its comparisons feature, where it gives more detail.

This is also useful:
https://embed.kumu.io/9ced55e897e74fd807be51990b26b415#vpn-company-relationships

As is this (although a bit limited):
https://www.vpnlocations.info/

Good sites re: vpns are rare.

One thing worth adding to any comparison is how you can pay. Mullvad, IVPN, AirVPN and Xeovo all take Monero, so the account isn’t tied to your card at all. I keep a list of VPNs that accept XMR, with their KYC policy: https://xmrlist.com/vpns

This site makes note of IPv6 protection but not IPv6 connectivity…it’s 2026 man…and it ultimately makes it useless to me