The first thing we should definitely do is find out as much information as possible about the concrete cryptocurrency.
Good sources of information include bitcointalk and reddit. So if we already know where to look, we should be exploring for a few hours.
Nowadays, there are hundreds of altcoins, but unfortunately to find the high quality among them is not easy at all. What matters is undoubtedly the main idea and the assessment of whether this idea is attainable. To do this, it is necessary for the altcoin to be a strong development core that can describe its ideas in a dialogue with potential investors and users. Equally important is the user base. If absent, it is difficult to get altcoins into the general public's awareness. These users can then spread the idea and awareness of the altcoin.
Another key factor, I think, is a vision for the future. At present, the situation has improved, and many alcoins have had some history, such as working applications, contracts with businesses in the industry. On the other hand, it is necessary for the team of developers to present a detailed plan for a longer period than the next few months. Blockchain technology and the use of cryptocurrencies is still in its infancy and space for huge expansion.
When choosing the altcoins in which to invest, we should also not forget about diversifying our portfolio and I dare to say that in this area of Cryptos, this rule is much more important.
I wish you all good luck in your decisions.
E.