Where can I sell my water damaged Macbook Pro?

I have an:

Apple MacBook Pro (12,1) Core i5 2.9 GHz 13" Retina (Early 2015)

About two months ago I spilled a bit of cold water on my Mac and it got water damaged (no brainer there). I'm still using it though. The only problem seems to be that the battery is compromised, so it won't operate unless its plugged in. Also sometimes if it overheats it may shut down. I'm looking to sell it to someone maybe for parts or something but I'm unsure where would be the best place to do so. Any ideas?