What are some good werewolf yaois?

I personally liked Tsuki ni Hoero and Three Wolves Mountain.

Thanks they look good 🙂

try this manga wild wind it's kind of werwolf

There's a smutty little one-shot called Loup-Garou Gokou by Ike Reibun in her collection Hide and Seek.
And also a one-shot by Watanabe Asia called Sweet Dog Food.

You can also do a category search for "werewolf/ves" that will turn up some more one-shots as well as series and there are some that are labelled as shounen ai as well.