have you tried google?
word of advice.. if you opt for the 'lowest brokerage charges' as your main selection criteria you will be swimming in a pool full of sharks and you will get your ass bit bad...
consider everything overall and choose the broker who ticks most of your 'must have' boxes.. if your 'must have' list starts and ends with cheap charges you're missing out on so much and putting yourself in harms way.
common sense and gut instinct are your friends, listen to them.