Tron is fine to be the selection of the coin, but XRP? Hmm, I am not sure because after what happened to the XRP, XRP had a hard time lifting the price or gaining more investors to invest in the project. But if the developer can solve the problem, XRP will have a chance to grow and lift the price. Until that time, maybe you can select the other coins besides XRP. But choosing bitcoin will be more than enough because bitcoin now breaks $32k (finally).