At present, what other currencies have great potential (such as eth XRP in those years), and I also want to invest in them Put it still, and then look at it five years later. Please give me some advice
The right advice remained left to you, nobody will give you the accurate advice you want, though not that they can give you right advice, but you need to be the one to make research about this and invest on the coins you want. I can advise you to download coingecko or coinmarketcap to check the history of crypto prices, you will be able to decide which one is best for you.