When creating a brand, what are some of the first channels you start advertising/promoting on?

🥷🏼I am working on an app that deals in the reseller/thrifter/antique space using some of the new AI tools to our advantage. I haven’t started since we are in just testing phases. However, I want to start marketing on a pre-launch perspective. 😃If you are willing..Tell us —- Your Product: Top Strategy: Worst Strategy: Ad Networks: Did you have a previous audience? Bootstrap or Funded?