The only place in where you could invest otherwise than cryptos, could be the real properties, we all know that it is impossible to lose money in there, sooner or later you will get the money back to you.
In my country you will have your ROI in less than 8 years, and then it is all profit.
Apart from cryptocurrency I will prefer to invest in travel agency because it is a profitable business and also white collar job. There will be a decent office and high society people will contact you for their visits to anywhere in the world. You will just make an arrangements for their youre and they will pay a lot for your services. It is a low investment business and the profit margin is very high. I like this business.