You shouldn't have an expectation like that. 100x token is too good to be true and even those things would exist then people in here would have been rich for a long time ago.

Other than that, if you want to know how to determine which projects are scam or not. You should take a look at these:

• Make sure to read the whitepaper first. Most of the scam projects have plagiarized wallpaper from the famous project one and they will trying to make sure that they disguised the whitepaper to be exactly look like a legit one. You can find the example on Scam Accusations, you can find how the thing works there.
• Check the website! If they are using free web domain or the design is really bad and doesn't contain any good information at all, then it is higher chance it's a scam project.
• Look at the developer team: If the team has weird name and if the people known as the scammer from various projects then it's most likely going to be a scam project. You can check it through simple quick google search and linkedln search.