Check out Wireguard, free & open source, lightweight, fast (performant), and not too complex, and highly regarded by many in the industry. - Source: Reddit / 17 days ago
Tunnelblick - free software for OpenVPN on OS X and macOS
OpenVPN - OpenVPN - The Open Source VPN
ProtonVPN - ProtonVPN is a security focused FREE VPN service, developed by CERN and MIT scientists. Use the web anonymously, unblock websites & encrypt your connection.
OpenConnect - VPN client compatible with Cisco AnyConnect SSL VPN
Tor Browser - Tor is free software for enabling anonymous communication.
Pritunl Client - Simple OpenVPN Client and GUI. Additional integration available when connecting to a Pritunl server.