When you want to buy coins at ICO, you can buy them when they pre-sell, because there you will get a lot of discounts.
If you want to buy an altcoin, make sure you see the road map of the altcoin that you want to buy, see the DEX market of the altcoin that you want and benefit if you are already proficient in choosing altcoins, because there are so many new coins that will make you confused.
It takes a long time to choose an altcoin that really has benefits in the future