Need Vacation Spots

28M, i’m very embarrassed to say i do not have any idea of vacation spots other than Coxs bazar, kuakata, Sundarban and Sajek valley.

I have been cooped up in my tiny home in my tiny city for far too long and need an absolute break from this right now. I need to breathe again.
People saying Coxs bazar is also very hot rn and so idk where to go.

Within Bangladesh, My budget 20-30k max. HELP ME BREATHE AGAIN