Question Best place to sell one off motherboards?

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Wondering if people have any advice about the best best place to sell one off but older motherboards.
I've ended up with an asrock z490 aqua but it's a 1of1 anandtech labelled version. It's in pretty good condition with the box and some of the accessories.
I have tried it on eBay but have had very little interest at the price I posted it at and wondered if people knew of places where people would be after unique and more collectable boards.
Thanks in advance!