MullvadVPN are tried and true and accept bitcoin pmts.
That said, today I heard about nostr:npub13ue6qxwf23vjkw6lu6pkykx06q6tkvmwcgm2f7jtnkwjc42ahmyqwuxn33 and nostr:npub17swrr0ll933wv4djnzfkeg2g9qxp59237pzf67mvkfj4qr265skqxpumsd ‘s new VPN/VPS service, Hashit