It is quite difficult to choose a broker being a newbie. There are different parameters on which a broker is compared such as spreads, withdrawals, execution, leverage and what not.
As per my experience, you can go for Coinexx, X-trade brokers, Turnkeyforex. Each of the broker has good trading conditions with impeccable trade execution. Turnkeyforex has a multiple variety in their account type. Every trader can look upto according to their preference. When I was trading with Coinexx one of the best things that I liked about this broker is - my trades never freezed and execution was super fast. X-trade is in the same way one of my favourites due to the tightest spreads.
Keeping in view the satisfactory trading conditions of these brokers, I recommend you to try them and make up your mind.
Happy trading :)