Here are Latin dance clubs and restraints where you can have salsa live band.
Hi-Class Clubs
El Nino
The place is located in the heart of Bangkok, near World Trade Center. Many wealthy Thai local people came hear live music. Many numbers of waitress and boys are trained to dance with single guest. So you may ask them for dance if you do not find anyone to dance with.
Salsa Club
Its located by MBK shopping Center, basement of Pathumwan Princess Hotel.
It is one of the most expensive club, but you still can enjoy live music with ordering 150Bth
beer which is about US4$ or so.
"Fuego Latino" from Colombia
Dance with live music! 
You can ask a waitress for dance.
Because of the many tourist from Europe, where salsa music become very popular, Bangkok become one of the favorite spot for providing live Cuban music recently. Only rich local Thai nationals and tourists enjoy Latin atmosphere. All the clubs close 2AM
List of club and restraint in Bangkok.
El Niño
973 Ploenchit Road, Every late night, Dance lesson and live music are available. .
656-0160/2 It located opposite side of SOGO department store. Dance here!
(This clubs is the sister clubs of K.L. Malaysia, but more high class)
The Salsa Club
Pathumwan Princess Hotel, 444 Phayathai Rd.,
free dance classes are available Mondays, Wednesdays, and
Fridays
One of the most luxurious place where you can eat South American dishes. But still reasonable as price is ranged
according to Thai price. You can dance here
216-3700-9
Casual Cuban atmosphere There are table outside and upstairs Make sure you call them before you go for the band time.
There are not enough customers during intermission. Waitresses cannot dance here. Good for while lassoing bands for
short time.
Casa Salsa
118/5 Sukhumvit Soi 23, ( This place is near Robinson Department Store)
Very cozy nice looking place, Come about 10 PM when bands starts. Dance lessons available every day. 662-0102-4
Bar Latino Bangkok
Royal City Avenue Plaza,
This is the bar providing Latin music every night. Dance lesson are provided some times. 641-4169
Foods are provided from Siam Cafe.
La Fiesta
101/111 Silom Road, corner of Patpong, Mexican restraint with live music every night.
632-7898/9
Baila Baila
1 Eckamai Soi 4 (Sukhumvit 63), 714-1898 (5 pm/2 am) Latin music is provided by the Wings Of Latin band and food from California, Mexico and Central America is served from the kitchen in this colorfully decorated bar/restaurant.
Many guests are come with group eating late meal. Must bring a partner here.
Señor Pico's
Rembrandt Hotel, Sukhumvit Soi 18,
Mexican food restaurant and band from Cuban are available. 261-7100 Good place for diner.
Ex. The emerge of salsa clubs and restraint in Bangkok is amazing. However, the Latin pop disco called "Que Pasa" located Pat-pong and La Havana in Sukhumvit are closed down. As Salsa is enjoying only tourists and a handful of Thai local, it very hard to keep business profitable.
The local Thai nationals are wealthy, many who can dance have a experience in social dance. As they favor cha cha, you will hear quit often cha cha in a salsa clubs in Bangkok.