Qubetics, Aptos, Solana, and Cardano are the best coins to join in December 2024.Qubetics offers a groundbreaking blockchain development feature, QubeQode IDE, and has a high ROI potential.Aptos is known for its scalability and developer-friendly approach.Solana is praised for its speed, efficiency, and vibrant ecosystem.Cardano stands out for its sustainability and innovative proof-of-stake mechanism.