Buying new coins is really risky because new coins is on stage of developing. We can buy new coin but we need to select a kind of coin that is high potential and maybe high on demand. For me I will surely buy more sold coin which is proven and tested that can give a huge return fro me our investment.
Looking for new coins is better but here the OP is asking for those new coins which just hit the coinmarketcap, means that which just came up recently to the market. In that case I will suggest that he have to invest in those new coins which have a great project and the developers are very active for the further development of their projects, they will give you a good return. I quoted both
You can not expect high demand for a new, unknown project with low price. You can predict potential based on the movement of the price and the acts and progress made in a short period of time. I agree with the second statement, take a look at the core of the project when you are making the decision. Look at the goals, plans and actions of the developing team. I found one that is progressing and it has a certain phase in the improvement, BTCN. Of course, you should first look at the cmc, how long it took for the coin to reach it and the things like that. But with the improvements and the development of the IT industry, you should take a good look at the base of the coin, in the way it was built in the first place. The industry is moving really fast and if you are not improving, the technology and know-how implemented in a certain coin can easily be outdated in a couple of months. That is why each new project should invest the same amount of time in development as in marketing and the community. A coin that not make a difference and increases its demand if the development is not constantly worked on. The one that I mentioned, BTCN, seems to have a potential, for now.