I've cancelled my subscription yesterday, conveniently it was about to renew at the end of the week, so I have a few days to migrate from Proton, here's what I'm thinking of, but I'd love to hear what other people are switching to
Pia is owned by kape technologies, a company founded by former Israeli intelligence officers that buys up VPNs.
I tend to recommend airvpn for cheap port forwarding but bear in mind you may recognize the need for a separate normal service because of airs unique position in the marketplace.