For me the best broker for binary is SOLIDARY. It operates directly from their platform so there are no time lag issues that can be with other brokers operating from your platform.
Excellent broker, it´s that simple. It has never taken me more than 5 hours to process (withdrawals). I put my hands in the fire by this broker. Highly recommend.
I recommend Solidary .. they pay very fast .. !! And that you can operate from their Trading Platform is the best! I use an EA and it works perfectly there ..