TinyWall - Lightweight and non-intrusive firewall
ProtonVPN - ProtonVPN is a security focused FREE VPN service, developed by CERN and MIT scientists. Use the web anonymously, unblock websites & encrypt your connection.
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
OpenVPN - OpenVPN - The Open Source VPN
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
TunnelBear - Really simple VPN to browse the web privately & anonymously.