Buy Altcoin at the lowest price for now and hold it until altcoin season. Must choose a coin that is ranked in the top 50 in the CMC. that's a safe choice. But pay attention to community support. Very important, because it will affect the price of the coin. Check the schedule of events that are held, the event will make positive news and make prices go up.
The issue is knowing the "lowest prices" to buy altcoins, since most times we buy at dip and price still gets dipper, this happened to me when I bought DENT at 13 sats and price went down to 4 sats. It's best to accumulate in parts anyway, but I'm having my major holding (70%) in Bitcoin. Recently I bought more NPXS hoping for the best since the development so far is encouraging even though price is down.