Basically in 2019 there are also many altcoins that are still cheap, I personally will hold ethereum, ripples, neo, waves, ADA, omg and dash.
Those coins you mentioned has a potential, so if you will hold, it could probably give you some good gains. Actually this time is suppose to be a good year to buy.
Why? Because all are cheap now, you cannot find this anymore when the rocket starts to pump.
You know, bull run will come soon.
Many opinions that this month is good for buying coins because the value is cheap and gradually goes down. So this opportunity is good or maybe the market will decline again and collect as much as possible.