I would never suggest anyone to invest short time. Because investment is not for a short time, investment is a kind of successful travel. If one does not consider investment as an event, he will not be able to make much profit but he will be at a loss. However, long time investment is more likely to get a higher return. If one wants to invest long time then he can use ltc, btc, eth, dot, link, sfp, bnb, cardano, xlm, doge, xrp