If the investment is only about coins that already have potential and quality in the market, then there is no need to do a lot of research because it is clearly good and good for the future as long as investors are still very patient with the current market situation.
Even if it is a top coin, we must always do deep research before buying it. Don't buy at the wrong time, especially when we plan for a short-term holding. Make sure we are buying at the dip and the price trend of the coin to increase in the near future. We also need to know the updated news about the coin, including the plan from the team of the project related to the coin. If we know there will be good events such as burning coins or trading competition, it is a good sign to buy.