I also think like that, that for me to make it as a long-term investment I prefer coins, BTC ETH and BNB, because these three coins in my opinion are very good for me to make investments and for future savings, but when I trade I prefer altcoins that are cheaper in price and have a slightly faster up and down price movement, because I think it can make it easier for me to be able to quickly make profits, even though it is risky, for me the risk in trading is a natural thing.
If you like coins with rapid ups and downs, take a look at Bitcoin at this time and I think it is also very suitable for you to trade although on the other hand Bitcoin is also suitable as an investment asset for the future. But if you don't like to trade with coins that are very expensive like Bitcoin, then there are other options for Matic and Ripple coins because they are also very good and also have faster ups and downs.