WireGuard - Fast, Modern, Secure VPN Tunnel
NordVPN - NordVPN offers VPN technology that encrypts data twice.
OpenVPN - OpenVPN - The Open Source VPN
TunnelBear - Really simple VPN to browse the web privately & anonymously.
Tunnelblick - free software for OpenVPN on OS X and macOS
Cisco Anyconnect Secure Mobility Client - Get much more than industry-leading VPN client connectivity. Cisco AnyConnect protects your enterprise resources through a single agent. See how.