Junglist ProtonVPN is based in Switzerland and is the ONLY free VPN that I would -ever- suggest.
I trust ProtonVPN. I tried the free version and it is extremely slow but if you aren't streaming video it should be fine. I am not positive but it may obfuscate itself.
NordVPN is the next best thing but you need to pay for that.
If you are in Ukraine OVPN is offering free VPNs and F-Secure is offering free VPNs.
Someone mentioned RiseUpVPN. I have heard the name before but know nothing about it. Apparently it's an optional donation? And it specializes in countries affected by censorship.
Hope that helps.