I like IVPN because it feels like a pretty drop-in replacement for Mullvad. It’s also available on Accrescent which is great for anyone using GrapheneOS.
As for AirVPN, I thought you needed an email to sign up but after checking their sign up page, it seems you can enter whatever string you want for your email.
They also support port forwarding unlike IVPN so if that’s super important to you maybe AirVPN is the way to go.
It also seems AirVPN is slightly cheaper year by year and significantly cheaper if you buy 3 years at a time.
AirVPN has never had an independent security audit though, so if that concerns you IVPN is the way to go.
Otherwise, it seems like AirVPN is a real contender if you’re worried about price and/or port forwarding. Maybe I’ll give both of them a try before I commit to one (still waiting for my Mullvad days to run out).
NymVPN is too new for me to feel comfortable using personally. Also it seems that they worked with Brave which I’m certainly not a fan of.
I wouldn’t recommend Jottacloud as their privacy policy seems iffy and they don’t have e2ee.
Filen’s privacy policy seems better, although they do say they do analytics. They do have e2ee though. Definitely much closer to Tuta than Jottacloud.