We have over 10,000 different cryptocurrencies that are listed in different cryptocurrency exchanges . It is not really possible for cryptocurrencies to be limited to only the litecoin and Bitcoin.There are so many coins apart from litecoin and bitcoin. You can just check binance to see the number of coins listed there. There are so many coins that just get listed with small values like cardano, Shiba, Baby Doge, Sweetcoin etc you can use small money to invest in many and wait for sometimes for them to get value