I would prefer coins with high volumes and also the price increase isn't too high either and because my profit target isn't too high it's only between 1-5%,
So far I agree with you, newbie should take popular coins ( btc, eth, xrp, etc ) that have volume or liquidity for their transactions, don't use new coins even they promise give you 100% profit per day, that's lie. Daily is short term period strategy, meaning no need to wait long time for leave market. Stable volatility can used over and over to get profit and I recommended scalping ( many op at the same time and position ). Need hard work and good psychology to use scalping but I'm sure you can study, practice and try it.