Hi Sam, I have a startup in Brazil which is a marketplace for technical assistance. Within 5 months we have over 2k geeks (in 102 cities) and over 200 clients

Hi Sam, I have a startup in Brazil which is a marketplace for technical assistance. Within 5 months we have over 2k geeks (in 102 cities) and over 200 clients and we're only on MVP. Unfurtunately I cannot find my aquisition channel (also I'm not sure about the profile of my clients since they are very random). All the investors say's they'll invest only when we find this acquisition channel. Would you recommend me any cheap way to test my channels? We're running out of cash (which we have almost 0). Thanks in advance