What kind of snails? They may not be detrimental. But yes if you just want to get rid of them then gouramis, cichlids, and botiine loaches will significantly reduce the population. Especially the loaches, as mentioned by others.
Depending on the fish you keep you could also probably use salt. If you're feeling really adventurous then potassium permanganate or copper will work too. Just be careful when using copper in freshwater as your alkalinity must be a minimum of 100ppm and it's rough on the biofilter.