Windscribe
I wouldn't personally recommend Windscribe. There are quite a few reasons why.
Their seized Ukrainian VPN servers were not encrypted. Also four years have already passed (since it was first mentioned), but the audit by cure53 has still not been published, and Windscribe is acting in a completely non-transparent manner.
Aside from ProtonVPN another good option is iVPN. To use Mullvad or not after their cofounder donated to fascist party is up to you, but avoid AirVPN or NymVPN, as those has not been properly audited.