Both worked and are 5-ht1a agonists
Buspirone is a 5-ht1a agonist that is avaiable. I think it's a weak agonist, correct me if I'm wrong.
Gepirone would be better cause its effects on D2 receptors are negligible, unlike buspirone.
I think buspirone would work in doses like 40mg~60mg/day and after some weeks of use.
If it doesn't work, IMO a 5-ht1a antagonist like cannabigerol (CBG) is worth exploring. Anything aiming 5-ht1a and/or SERT is worth a shot.
I'm trying to get my hands on buspirone, but my doctor denied. This is frustrating cause I need to wait months till an appointment.