That is actually the type of investment i would like to go with if it has to do with an online package,because it could be very easy to rake in my investment in a short time.But for an offline business,i would go for edibles and everyday consumables.If you want the short and the risk choice, go with mining and trading Crypto because it can give you what you want.
If you want the long and best way, you should start an offline business like making food, products, and phone shop (select the field depends on your country's skills and conditions).