You can invest in any stock market. You can buy gold according to your ability. Or you can buy bank bonds or make fixed deposits in banks. These are quite secure investments and you can make small investments here without investing a very large amount. But I think crypto is the best option for small investments. Because investing here is very easy and you can keep them under your complete control and can sell them instantly which you cannot do in other investments. Especially investing in Bitcoin is much safer. But if I have to invest outside crypto then I will invest in Gold, bank bonds, stock market, and land according to my budget.