VPN

Boring Protocol - A Decentralized VPN on Solana (Docs)
Mysterium VPN - A global, distributed network powered by everyday people. Network participants are incentivised to share their resources in a supply and demand marketplace, helping others gain access to the open internet (GitHub)
Orchid - Orchid is a platform that enables an onion routing network incentivized by OXT and a multi-hop VPN client (GitHub)
MEILE - A decentralized VPN Client utilizing the Sentinel Blockchain (GitHub)
KelVPN - The first ever deanon-proof VPN is now available. It keeps your data safe by tunnelling it between the blockchain nodes and encrypting it with variable quantum-safe encryption.
Lokinet - a VPN tunnel that uses onion routing as the transport (GitHub)
Sentinel - A global network of autonomous dVPN applications that enable private and censorship resistant internet access (GitHub)
IVPN - IVPN keeps no logs, no customer accounts, open source VPN provider using WireGuard. Can pay for VPN connection with BTC or XMR and can get 'subscriptions' that last 1 wee or 1 month, not for 1 year+. (GitHub)
Mullvad VPN - One of the most privacy-focused VPN providers (check thier Privacy Policy and history). Mullvad VPN could be paid by by Bitcoin Lightning here - totally anonymous. (GitHub). Also co-authered Mullvad Browser with Tor Project team.
ProtonVPN - Swiss VPN provider with encrypted email and online storage (GitHub)
Solar labs - World’s first truly decentralized blockchain-based VPN service.