Top altcoins are the most profitable coins if you were bought during the ICO or after the exchange listed. 100x, 200x or 300x pumped the altcoins price but any new coins couldn't make it.
Some of these icos were not fully liquid and that means your token gets vested. You can get into this when you are lucky enough or you have a lot of money in your pocket to participate in the IEO that launched on binance or something else. The competition is also very strict these days.
NFT has become the most profitable trend in this year and we can't deny if some NFT got hundreds thousand of users.