most relays on ddsrs and alienos relay:

GitHub

GitHub - dezh-tech/alienos: A plugin-able and manageable Nostr stack (relay/blossom/nip-05) designed for self-hosting.

A plugin-able and manageable Nostr stack (relay/blossom/nip-05) designed for self-hosting. - dezh-tech/alienos

are supporting nip-86. if you run them, you can use it. about nip86 client, we have nak:

nostr web army knife

gui client? we don't have any. i had a project called mangostr: https://github.com/dezh-tech/mangostr but i don't have enough time to work on it and i wasn't able to receive a grant for it so i put incentives for more devs. then it's abandoned at least for now. you may want to develop yours. 🫡