Considering there is a gay sauna in Ubon (Relaxing, went this month), in Udon (UD sauna, get their updates on Line) and in Khon Kaen, there must a market for a gay sauna in Korat, but I have never heard of one. Search on google in Thai นครราชสีมา ซาวน่า เกย์ gave
G-HOME SAUNA & MASSAGE / Northeast Area / Korat / Cruising Rooms |Thailand Gay Guide
with map and phone number
and
http://www.thaiday.com/Local/ViewNew...=9550000012695
(report in Thai about a police raid in 2555, the most recent information I found on the internet)