What FX currency pairs does the broker have available? Make sure they have the forex pair that you like to trade.Some only have a few currency pairs, other forex brokers have a huge range of choices. If you only want to trade the major currency pairs, this shouldn't be a problem for you. If you like trading pairs that have good volume look at FX brokers with broader offerings. Some brokers even offer non-forex products,stocks,futures,options on the same trading platform. Make sure you check their commission schedule for them.