First, you have to get more knowledge about that token which you want to trade In my opinion you should always make an investment in a new Altcoin and you should always make an eye on that token.
I agree on you mate! Before choosing the altcoins you want to invest, you should gather information and research it first on what's the potential of the coin you choosed to target or speculations. It's always good to bear in mind that whatever you choose, you should have a profit and make more gains than loses. Remember, trade or invest only what you can afford to lose.
Anyways here are some of the best altcoins you should look into.
https://money.usnews.com/investing/cryptocurrency/slideshows/whats-the-best-cryptocurrency-to-buy