<h1>Crypto Altcoins Surge: Rexas, Toncoin, Tron, Mantle Offer Promising Investment Opportunities for 2025 Million-Dollar Portfolios.</h1> The crypto market is seeing significant activity this holiday season, with altcoins like Rexas Finance (RXS), Toncoin (TON), Tron (TRX), and Mantle (MNT) gaining attention for their potential to build a million-dollar portfolio in the next year. Rexas Finance is notable for its utility in tokenizing real-world assets, Toncoin benefits from its integration with Telegram, Tron excels in DeFi and dApp development, and Mantle offers a layer-2 scaling solution for Ethereum. These altcoins present opportunities for investors seeking diversification and substantial returns, with projections of significant price increases in 2025.