Great question. Worked hard to convince a couple of higher profile parenting professional to join as advisors. No cash but a tiny share of equity. Then used that and the early traction that I could demonstrate on the Instagram account and our MVP to approach other parenting professionals and it snowballed from here. But it took in between 2 to 6 months per professional (we ended up with 16 professional partners - unpaid for now until the app gains traction) so I'd say that you need to be very organized and approach many people in parallel. If you email me, I can share more details.