I suggest if you want to invest long-term, choose top 10 coins in the list of CMC because the price is more stable and minimal risk for the long term.
but if you want to invest in the short term and want to get a quick profit, then top 100+ altcoin is the right choice because the movement of the price is very fast, even in 1-day profit can reach 400%. but this option has a considerable risk, you must have the coin knowledge you will choose otherwise you will lose your money