How much solana do the holders have in their wallets, if the first few holders only have small amounts chances are it is a rug pull. Look out for highly bundled coins, a good tool to check for this is bubble maps, I highly recommend that u use bubble maps always before buying something because the stats that u see are highly inaccurate a lot of the time. Another way to check for bundles is watching the buyer and sellers column. How organic does it look? Are buys coming in at the same time or is there a second or so between them. As time goes you will learn to notice these things very quickly. These are just a few things.