Mosaic is open but was booked out last two times I wanted to stay there, so I went to Boutique Bravo Hotel which I can recommend as well (the sign "Joiner Fee 500" at reception was not enforced, I had a boy come up to my room, a friend walked in with a boy). Marine Plaza is open. Don Plaza closed.

I saw a person who looked like a tourist walk into Lek Hotel in Sunee Plaza (i.e. he had a key to open door downstairs), but that place is very basic and after having a look there many years ago I decided it's not for me.

Boyztown and Jomtien hotels are of no interest to me, I don't know which are open or closed.