Most of the altcoins failed because of improper planning of the founders. I don't normally like altcoins but planning to invest on two which I know that is good to invest.
I hope you will be careful with this altcoin investment and choose the right coins because most will not rise to a profitable level. They are just moving slowly unlike bitcoin whose price change is obvious. However, while investing you need more of top altcoins like Ethereum or BnB. Then if you want cheaper altcoins you can pick altcoins listed in binance because of volume.