Before you decide to reachout to your potential users, it's important to reflect upon what defines an ideal community member persona. Here's a detailed workbook to set your thought process on how to go about this. 👇
Understand which platform are the users most active on today - Slack, Twitter, Github, etc - target them where they hangout the most.
Gauge your competition - how good or bad is the existing solution? How can you add more value to solve the problem in a better way?
Do a survey to understand which communication tools do they use at work. This will help you understand which community platform might work best for your target audience - Slack, Discord, etc
This will help you understand their interest fields and allow you to share content and enable connections basis that.
Identifying the pain points helps you understand the purpose or the intent to join your community. The best way to do this would be to reach out to them for a chat.