Starting off with the idea of no investment there are always a few business models that one can start with no investment.
Seeing today’s time one can easily start with no investment.
The Business Model that you can easily start with are:-
Theme Pages:- Starting a theme page requires just consistency and no investment. You just need to focus on a specific niche and be consistent with your page. Once you have grown a good following you can just start selling.
Blog Model:- Start sharing your views on a particular niche through blogs or newsletters and start creating a community once you have a great community just come up with a paid version and you have your own business with no initial investment.