I recommend investing in Ripple or Cardano. Ripple is altcoin with huge market capitalization, it is only behind Bitcoin and Ethereum. Ripple is used by many banks in the transaction, proving that the ripple actually has potential. also Cardano, this is altcoin has a relatively fast growth. Cardano has a professional development team, it has good scalability, Cardano's transaction speed is also very fast. I believe that in the next few years Cardano will grow very strongly. Now that their prices are still low, this is an opportunity for us to invest
Under $ 1, Cardano is definitely worth the investment. The project is developing very well which gives the opportunity for a good profit for long term. I would rather not recommend Ripple. Achieving price above 1$ will be a big challenge for ripple. You can find a few better and promising coins than a ripple.
cardano has a good potential to reach $ 1 but takes a long time, but it's already seen if the future of cardano starts looking good and it's not bad for a new coin.