Go ICOdrop, or Coin360 and start to study each project seperated, which one is related to the blockchain, NFT, Marketplace...
verify the funders of each project, and there community on Twitter, Discord and telegram
is the project has been mainted on ETH, BSC, PLG,... if the crypto is on ETH there is a good possibility that this one is not a scam and you can rely on it
See the marketcap of the coin, and try to compare it with BTC to understund the potentiel of coin to rise. (*30%, 40% ..100%)
for the new project, you need to verify death wallet (you can see it in Etherscan , Bcsscan, coinmarketcap), so as not to have a sudden decrease,
the top seed of holders must have only 5% or less of the amount of the total supply of the project.
take a look at the chart of the coin,
Hope this is clear for you and don't hesitate to contact me in private,
have a nice day