Hi there! I recommend (and have done this for my own Startup) creating your job description(s) and posting them for free on Indeed. Then, consider talking to a Startup Attorney to find out how you can offer stake in your company. There are ways you can offer this without having to give up % of the business, if you choose. Hope this helps but I'm here if you need additional mentoring or advice, I've been through it all!
You can find the team anywhere- Indeed, Linkedin, referrals from friends and your existing team etc.
The real key is in the interviewing. You need to find people who are motivated, bring new skills to the table, and who want to learn and grow
I recommend Lou Adler's book for how to do this properly