Hmm, I think it depends on the goals of each trader. For example, I have a goal to make a low profit but consistently, so I can choose a broker with a low-fee offer and a user-friendly platform.
But, maybe if you have no experience with a broker and want to taste it, a low spread and zero commission maybe sound good to you. You can try Prime Codex FX, IC Markets, or XM. Their platform is pretty easy to be used.