You had better look for some variants to invest in spheres that are popular now. We can see that there is hype around metaverse and NFT-sphere. I don't know any solid projects that haven't pumped yet, buy you can search for them among upcoming projects. Also, alternative chains become more and more popular because of Ethereum's gas fees, so you can invest in their native tokens (Near, Fantom).
If we can only outlook the incoming Solid Projects or ongoing then we will be a millionaire on the spot but the thing is this is really cannot be seen that easy , yeah there are many speculation but even those experts are not 100% certain in bringing perfect project.
but of course there are GEMS in this space but only if we can find them before being pumped.