if you think it's SOME KIND of anything, then it proves you don't understand it.
Research it again until you can answer what it is without saying "SOME KIND OF "
ok, here are 3 to get your started
Pepperstone (My Broker)
but who you use will depend on what instrument you are trading and what country you are in.
I"m in Sydney (Australia)
i would suggest using a broker in your own country
and use the search bar at the top to google brokers, because this subject has been dealt with so many times it's not funny
hope that helps