Stellar (XLM), Sui Network (SUI), and Ethena (ENA) are emerging as promising altcoins with potential growth before May. Stellar is set to benefit from its upcoming Protocol 23 upgrade, enhancing speed and network capacity, alongside strong partnerships with firms like IBM and MoneyGram. XLM has surged over 300% in the past year, currently priced at $0.38 with a $12.2 billion market cap. Sui Network has rapidly expanded since 2024, with its total value locked soaring to over $567 million. Key developments include MetaMask integration and the Giga upgrade, which boosts transaction capacity to 200,000 per second. SUI trades at $0.32 with a $1.94 billion market cap, supported by a growing ecosystem of over 200 projects. Ethena focuses on stablecoin innovation, with its USDe and sUSDe products gaining traction. USDe ranks as the third-largest stablecoin by market cap. Ethena's integration with Avalanche and planned fee switch for ENA holders could further drive adoption. Each of these altcoins trades under one dollar, offering potential upside in the near term.