pq.hosting has some nice wireguard services for 2 euro a month. yes, they accept bitcoin. getting wireguard clients running can be a bit complicated on linux tho.
Discussion
i personally think that specialised vpn services are a dumb idea privacy wise. most sites are figuring out which big vpn ip addresses are and they are starting to partition us out from them. that's why i like the pq ones, they are basically a cut down, single purpose vps with your own private IP address, and only allow one connection at a time.
these are unlikely to get flagged as VPN addresses any time soon.
the performance reflects their dedicated nature too. very minimal additional latency.