I'd suggest putting up a DAN landing page for $1,500 on the domain.
Then list it on the Afternic platform.
Also listing for free on Sedo, Flippa Classifieds, and Uniregistry Marketplace are a good start.
If you want to go further I'd list it in the fixed price section on Namepros. Do a Craigslist listing because why not.. and promote your landing page on the 70+ Facebook groups devoted to domaining.