The are good stable large cap coins. If you are looking for decent profit in long term without putting in much efforts, I would say these coins are good for the portfolio. But if you are looking for big profits like for which cryptos are actually popular, then do try short term trading with medium and low cap provided you understand technical analysis.
That means if we don't understand technical analysis of trading, is it really bad if I do short term trading? What if I only understand a bit of that analysis, Is it okay, or that analysis is the basic, so we can't run into short term trading if we don't know anything about analysis.