Thndr did a good job. Geyser just launched.
What others are there?
Discussion
The Thundr badges are a perfect used case. I didn't see that Geyser implemented badges too? That's fantastic.
As for other badges, dozens and dozens exist. Some of early access to relays, some for early access to services, such as Nostr Plebs, but most badges are just for fun at this time.