You need to clarify some hints regarding your trading style?
Are you looking for daytrading coin? Do you search for huge volatility? which pair are you going to use and which will be the platform you want to use?

I used to do day trading two-four months ago and my favorite coin was NEO. I made a decent profit from the trades even if i didn't like the coin and the technology behind it.

HINT: Choose a coin that you are not emotionally attached to it and not a regular hodler of it...