I am more interested in a technical co-founder but I also will need marketing in the future. The thing is that since I am a full stack dev, I can do everything

I am more interested in a technical co-founder but I also will need marketing in the future. The thing is that since I am a full stack dev, I can do everything bottom up so I don't really need to pay a freelancer for a few weeks, I just need someone to work with me because doing it alone is so damn difficult. Also people don't take you seriously when it's a one man show (and it's correct).