relay.exchange has most of the paid relays listed. You can also check other users relays to see what they are using, if interested

Highly recommend filter.nostr.wine from nostr:npub1qlkwmzmrhzpuak7c2g9akvcrh7wzkd7zc7fpefw9najwpau662nqealf5y and nostr:npub18kzz4lkdtc5n729kvfunxuz287uvu9f64ywhjz43ra482t2y5sks0mx5sz