Less than 10 relays (because of the bug)

You want a few big relays like damus or nos.lol, a few paid relays like wine or the filter (if you want). Some smaller like nostr.land or WoT. I like to have utxo’s news relay. And purplepages (for dsiscoverability) and hist.nostr.lan for backups. Last 2 aren’t necessary. I just find they make my life easier