Analysts have spotlighted Cardano (ADA), Chainlink (LINK), and Avalanche (AVAX) as top altcoin picks for the fourth quarter, citing their robust fundamentals and technical potential. Cardano is progressing through its Basho and Voltaire phases, with the Ouroboros Leios upgrade on the horizon. Chainlink is enhancing its institutional appeal through partnerships with entities like Plasma and UBS. Meanwhile, Avalanche is focusing on expanding its treasury and ecosystem. These strategic developments position the three cryptocurrencies as significant contenders for Q4.