One of my favorites is Ripple: XRP, which was established for its speed and ease of transfer, and also has partnerships with American Express (AMEX), Banco Santander, SBI International and Money Gram. Partnerships of this caliber provide XRP access to leading financial banks and financial service providers around the world, ensuring that trust is a good investment. Besides XRP I have observed very Litecoin: LTC, ICON: ICX, NEO: NEO, and the most important Ethereum.