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Now that you mentioned day trading. I would say that top 10 coins in CMC would do although it was a pretty rough experience for me when I was learning day trading back then in Binance. I am not sure how it would go for NFTs though as I never ever touched them ever. If you're going for the trends, sure! Go for NFTs though I cannot recommend ya NFTs.
NFTs are actually pretty fun brother, not inky do you get to collect artworks that catches your interest, you also get to make some profits by flipping hyped NFTs that are not the type you want to hold for long. There are tons of people right now that are flipping NFTs for profit which is why tons of NFT platforms have popped up ever since the NFTs became famous. Even on the bearish market there are still people creating, buying and selling NFTs on various platforms. I suggest you try it out, really worth your while.