I'm not going to give you the secrets to the trade but one of the tools I use when trying to sell a domain is Google. It's a simple Google search for the keyword(s) of a domain, then I contact the companies showing in Google results. I have other methods but this is the simplest.
For example, "7 Body" showed me nothing so I tried "The Relations" and this is what I got:
https://www.facebook.com/therelationsmusic
I would try to sell it to them. Music is the worst business and the world and those guys are broke so don't have 4+ figures aspirations, offer it to them for a few hundred bucks and if you come correct I can almost guarantee you'll have a sale. Good luck.. .