Several outlets are discussing the top cryptocurrencies to buy for the best returns, with some mentioning BlockDAG, Pi Network, and Cardano as potential options. BlockDAG's mainnet is reportedly live, with some outlets suggesting it could outpace other cryptocurrencies like Ethereum and Avalanche. The reports also mention other cryptocurrencies, such as Chainlink, PAX Gold, and Bitcoin Cash, as potentially strong buys, but it is unclear which one is considered the best investment.