What are some of your top tips for Product Hunt outreach, prior to your launch?

We're excited to be launching ApyHub for Teams soon here: https://www.producthunt.com/products/apyhub Question is: ➡️ What are your top techniques for reaching out to people for support? What has worked for you in your own experience? ➡️ If you have an existing user base, how would you recommend leveraging that for support?