A cheap <$20/year VPS is sufficient to host Vaultwarden. No need to spend several times that. My Vaultwarden installation is only using 120MB RAM, so a 1GB RAM VPS would be more than sufficient. Take a look at RackNerd, HostHatch, GreenCloudVPS, and the other top providers on LowEndTalk. RackNerd’s latest sale has a VPS plan with 1GB RAM and 14GB SSD storage for $11.38/year: lowendtalk.com/…/boom-boom-4th-of-july-deals-come…, but I’d personally go with the 4GB RAM and 75GB disk for $47.88/year, since self-hosting is addictive and you’ll find plenty of other stuff you want to host.