There is similar question before, i will refer those below
Why Paid relays?
#[1]
Additonal opinion
#[2]
Maybe this can help some of your questions
You can check list of paid relays here
If you want some opinion, i think currently nostr.wine has offer more than other paid relays. They have multiple servers (Europe, Asia, US) which automatically choosen by your IP address. They also have extra features https://filter.nostr.wine . You can check their sites for more information. :)
Discussion
No replies yet.