I am coming to Thailand in June and I am interested in visiting possible new places than I'd normally go to. Typically my favourites on a two or three weeks vacation have been Chang mai, Hua Hin, Udon Thani, Pattaya, spending bout four days to a week in each place.

tried other places like Chang rai, ko samet, phuket, Krabi, few other cities in isaan, Bangkok several times.

I don't care too much for phuket.

Anywhere someone can recommend that they they actually travelled to that they really enjoyed the place.