
@Airen
You mean gloryhole themed manga? It's just a hole in the wall/toilet stall for the seme to stick his thing through, but it is usually like this manga, focused on the uke. (Haven't seen one with fous on the seme's reaction, sadly.)
There should be a few, but most of them are not so good (the ones I've read at least).
I cannot seem to find a tag on this website either. Only 3 manga, and 2 of those are the Kabeshiri type, not gloryhole. :/
Good luck with your search tho and feel free to send me a link IF you find some. :'D

No problem: http://www.mangago.zone/tag/glory%20hole/
But as I said, 2 of them are the same theme as the manga you left your post on (butt-wall theme). Not sure about the 3rd one...and be careful with that one, Harada was involved in creating it so it's likely something fucked up that is not to everyone's taste. :'D
I mean does anyone know if theres manga where the semes are the ones behind a wall where ukes pay to fuck their dicks? Something like dick wall maybe?