The coins you listed are safe picks that have already amassed a lot of growth.
The coins that I invest in are in hopes of it becoming the next bitcoin with x10 returns at least.
Thats why im picking NEBL, atm it has low marketcap value because it is still in development, however it seems like a promising future project with an excellent proof of stake system that allows you to earn coins as you have NEBL in your wallet.