https://www.tumblr.com/virtualcremefem

Literally tags posts with "Proud misandrist".

I found a couple others before this one, but they were almost entirely just reblogs of TERF shit.

edit: Even better, has 'misandrist' in the blog header. https://www.tumblr.com/yonimogen

edit edit: Jackpot. https://www.tumblr.com/notthefunkimd/