Tunnelblick - free software for OpenVPN on OS X and macOS
NordVPN - NordVPN offers VPN technology that encrypts data twice.
OpenVPN - OpenVPN - The Open Source VPN
WireGuard - Fast, Modern, Secure VPN Tunnel
ExpressVPN - ExpressVPN is the worlds fastest VPN service.
Firezone - Firezone is a remote access platform that’s painless to deploy, easy to manage, and built on WireGuard® to be blazing fast. Best of all it's self-hosted and open-source.