Relatively safe. But this is relative to many garbage projects. The top 100 have already demonstrated that these projects are very successful, otherwise they will not have such a great degree of recognition. At the same time, it is recommended that you consider new projects, quality teams and available functional concepts. Take a look at usechain, which is being promoted.
There were two coins in the past, Bitconnect and Regalcoin, all in the top 100 in terms of volume, but now we will not find the names of the two coin in the top 1000.