I'm not sure that the short term will be able to give satisfactory results for this period. many investors seek safe if taken care of for the long term because the value of the crypto movement is difficult to guess. Cardano is a good coin and with long term is more promising.
Some coin can give a good profit in short-term, but it's hard to select because we need to find out which coins that will increase later. Cardano is one of the coins that can bring a nice profit in short-term and long-term investment, but it depends on your strategy because the result will be different too. But maybe he can choose the top twenty coins list and make analysis form each coin so he can get a clue about which coins he needs to buy.