Yaşar,
I totally agree with Elias: to my mind now St. Petersburg is the best city in Russia for LA-dancing salsero. If you searching for good salsa Los Angeles I’d recommend you
Sierra Maestra (Petersburg) and
Baila Conmigo dance schools. Here in St. Petersburg you can find partners to dance LA style salsa practically on
every salsa disco.
But to be objective, I would like to say a few words about other Russian cities
There are some rather good salsa LA schools in Moscow:
Sierra Maestra (Moscow),
Ritmo de Vida, Step-Up, etc.; salsa Los Angeles is very popular in Kazan too.