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
Ivpn doesn't support port forwarding so it probably won't work well for filesharing. Private internet access has support for it, although I'm not thrilled with its jurisdiction atm, but that being said they have been subpoenaed before & were unable to produce logs so they probably aren't bsing their no log policy.