I am deciding between three domains. I intend to use it for a service that generates an AI podcast feed that can be subscribed to from any podcast app. The content is based on documents the user provided or targeted, auto-generated news summaries (planned).

Even though I purchased all three domains already, I will only go live with one of them. The other two will resolve N/A. The chosen domain will resolve at the end of the year, based on if I am happy with the choice. My happiness will likely be based on a mix of feedback I got from friends and users and to some degree traction if I find the domain is hard to remember or otherwise leads to issues (confused with other products, misinterpreted, etc).