Do a google search, look for their reviews, there can be fake reviews too , but over all you can get a picture about the broker
Well, you`d better consider what your own criteria are. Which markets do you trade, and what do you need from a broker. If you would like more help to find a reliable broker I tried this one https://cityfxbroker.com/ and have absolutely no regrets
102,489 questions
97,675 answers
1,294 comments
7,007,782 users