Check their team and previous experience. If they are new or no-names, I would start to be suspicious. How can a developer has nothing do display on public and promise success?
newer projects right now are more anonymous than what we have in the previous times .
this makes it harder to determine if they are legit or not but there are project that are honest and been running up to this date .
Check what they offer or are developing? Is this something new? Or another swap/exchange/dog (or other animal) related project? There are thousands of them already. They cant make 100x.
Remember, there are no easy and quick money in cryptocurrency, at least anymore.
we have meme coins with no real use case and have a repeat function .
if we got lucky the coin can get shilled ny elon musk and it will pump but of course i dont recomend it because the loosing rate for this coins is still high.