Hi!Yes,there are a lot of very good pubs in Sunny Beach!also Karaoke bars.Very good bars are Corner in the very center of Sunne Beach,Tropicana,The happy Duck,Spider,Mamacitas...for Karaoke-Tropicana,H.C.Andersen...
For the hotel i can't tell you anything but it has been renovated 1 or 2 years ago si it seems very nice now.but you can enter google.com and then write "hotels in sunny beach"for example and may be you will find smth.Bye