Ethereum , xrp and Dot is best three combination altcoins that will gives you a lot of profit in the future if you buy it and hold it right now it will gives you more money few years from now.
Among those coins you listed, Dot has the greatest momentum to reach a massive high this year because most of the upcoming projects are getting building their smart contract on pokaldot, this actually is the same reason and thing that skyrocket BNB, DOT will be the most recognized coin this year if the team keeps their promises and complete their roadmap as planned.
Ripple on the other hand, is currently having unresolved problems in the court, though if they actually win the case then XRP will experience the best ATH of the year, i think that's the major reason why some investors still buy XRP and hodl.
Hoping that Ripple will win this one and boom massive pumped will take place, oh common! there are still investors who continue
to chase potential from this coin.
With your statement regarding to DOT if they'll continue provide what's been written inside their roadmap and more investors
shows interest, this project will soon to gain much higher appreciations, usable development will lead to this project to a great
success inside this market.