Hatyai

Accommodation : New Season Hotel, Sakol Hotel, Lee Garden Hotel, Mayflower Hotel
Shopping : Central Festival, Asean Night Bazaar
Pubs : Post Laser Disc, Westside Saloon, Homeless Bar & Grill, The Swan
Clubs : Kiss Channel Club
Sightseeing : Hatyai Municipal Park, Stainless Steel Temple and basically many other temples if you're into it. The Hatyai waterfall is supposedly quite nice but I've yet to go there.
Food : Plenty around central Hatyai, even halal selection.
Others : Massage and cheong I guess, buka WeChat can find alot or can get tutktuk drivers to take to around to the chicken farms

Kiss Channel boleh, as there are many GROs/freelancers you can try to ask out (depends on price I suppose) but the pubs I mentioned are frequented by locals, usually youngsters and OLs. But no harm in trying to pickup local OLs no?