You have to learn that altcoins are risky, especially the new ones, and even if you study the project or the team behind it, you can still buy a wrong coin or be scammed. If you read what other members say about certain coins, it could help you narrow down your research and study those coins, but you must still invest what you can afford to lose.
If you are a newbie, i would recommend that you start with investing in BTC and when you understand the crypto industry, you can then go on to invest in altcoins which are more risky.