There are many coins that have the potential to become the next 100x, but if we want to get 100x profit of course we have to be able to choose large projects that have skyrocketing potential, they are usually projects that have strong financial support so they are easy to pump.
I don't think they are much criteria for picking 100x coins as basically any coin with the right marketing can achieve that. These days even the supply of the tokens don't matter anymore as if coins like Shiba Inu could do the multiple of X's it did then others can do so as well although the marketing just has to be right. The next areas you can pay attention to, to get these 100x coins are Layer 1 projects. This kind of project tends to get the attention of investors since they're platform that means utility can be assured and many investors are always advice to invest in project that has utility.
This is the reason projects like Solana, BNB and Fantom did very well in the last bull cycle and I'm of the opinion they'll do very well in the coming bull market. So keep an eyes on the layers 1 projects that are competition to Ethereum.