Build community around my company for dance (I will not promote)

Hello! I'm working on a startup in the dance space. It's most likely going to be a consumer/apparel brand but I'm exploring other options. While I go through customer interviews, MVP designs, etc. I realized I should be building my customer list as well as engaging with my early adopters as much as possible. Here's what I've got sketched out, any advice/feedback would be helpful: 1. Invite only community on fb for early adopters: purpose is to share updates on product development, get feedback, iterate, etc. FB because that's where dancers communicate for different events, etc. 2. Instagram account focused on the dancing lifestyle: covers history, culture, dance tutorials, etc. The call to action for IG would be to 1) follow and 2) join my mailing list with the link in bio. 3. The mailing list: thinking of using convert kit for this. The purpose is to update people on the mailing list on product development. While instagram is about lifestyle and brand, email is about tangible updates on how the product is coming along. But not AS interactive as the FB group. Both IG and Mailing list would serve as a larger base where those that engage the most can be invited to the FB group community. I'm looking for advice on this strategy and how I can make this better. I'm focusing on my startup full time so time is not an issue, but I also care about quality & effectiveness vs. Quantity. Thanks in advance!