There is no list that I am aware of, from the top of my head we have:
An android app made by one of our players: https://play.google.com/store/apps/details?id=io.zenandroid.onlinego
And a whole standalone game is being built around the concept of interfacing with OGS: The Conquest of Go - A Videogame featuring Go Gameplay - #98 by wolfeystudios
Honestly don’t know, not my area, it is also possible there is none. Perhaps @flovo would know.
Yes 
happy to discuss more over PM.