If you talk about trends, then you need to pay more attention to the crypto space starting with twitter, you can start by following top projects, developers and even Influencers but be careful with especially Influencers. Trends in crypto is best utilized when one joins early, and just like NFT that is currently trending now, those who were fast enough to get involved at the early stage benefited a lot.
Now, from current trends you will be able to get into early coins, this is because many blockchain networks will bank on that current trend and developers will look out for ideas to build on, taking the NFT as an example too, I think ADA ecosystem started it first and gradually Solana picked up the pace and today a lot of these projects are growing on Solana blockchain, and where some are new tokens others happened to be old tokens which looked for ways to tap into what NFT offers.
So in other words, try as much as you can to get hold of any crypto trend, join on time and grow with it, the more it goes on the more you grow in more knowledge of it, thus making the most out of it while benefiting hugely.