The cryptocurrency market can be divided into several sectors. For example, we have Proof-of-Work cryptocurrencies and Proof-of-Stake cryptocurrencies, which represent two of the main approaches towards achieving decentralized consensus. We can further identify other sectors such as decentralized finance, non-fungible tokens, layer 2 projects, meme coins and others. Investors in the belief that the mainstream adoption of IoT is imminent might view IOTA as one of the top coins to buy now. Moreover, due to the crypto winter, IOTA tokens are available at a cheap entry price when compared to their all-time high in 2018. But don't sleep on the rest of the crypto market. Previous Bitcoin halving cycles have led to huge, once-in-a-lifetime gains for top altcoins as well. With that in mind, the one altcoin on my radar right now is Solana SOL -0.76%.