Let me encourage you to focus on "co-founder"
There is an endless set of research, editorial, and perspective on the idea (perhaps fact) that two people make technology companies work: CTO and CMO. More than that, opinion after opinion is citing that the CMO of today is the CEO of the future. Why? Or rather, why not?
Most companies that fail think of Marketing is growth and customer acquisition. That couldn't be further from the truth with Marketing being the breadth of activity dealing with ALL customers be that analytics to customer support for website visitors to investors. Growth and customer acquisition are nothing more than the result of good Marketing and various programs such as Advertising.
Thus, the perspective makes sense. Your Technical person builds and your Marketing person architects: your customer strategy, your growth models, your funding plan, your product road map, etc. Why do they do so much? Isn't that the CEO's/founders' job? No. The CEO's job is to make sure the team has the resources it needs: human, capital, and strategic vision. To wit, I'm not the first to posit that the exceptional startup teams are those with 3 founders, not two: Perfect Startup Team
. Visionary, builder, marketer.
So don't try to hire a CMO ("hire" being my word, I realize, not yours). "CMOs" are expensive executives with years of experience. Find a co-founder. Be the visionary leader and the brilliant technical co-founder as that's what a brilliant marketer is seeking in working with you. If you're trying to bring on a Marketing person, a "CMO," to grow the company, you'll find someone looking for a job; someone who probably wants to get paid and certainly will want more of the company if getting paid isn't possible. You're not ready to bring on a "CMO," but you are ready to have someone on the founding team who leads Marketing. Find the partner with whom you'd build a company, as that's what you're doing; someone who has the skillset that complements your own and enables you to bring your brilliant idea to market. Call them a co-founder and make them CMO only in the sense that a partner expects to meet with that person.