Fun fact: your XMR friends might have an address in their profile. If you don't have a capable nostr client you can  view it by visiting their profile on nostr.band, click "Menu" and select "View Profile JSON".

https://m.primal.net/JpRC.png 

nostr:note17u8wea9g743uk2wrmsjs6uenw9lnfwehe2xf7q60nkse36r72zpsmutdea