What community would you build now...
if you were being paid to do it? The only catch is that it would need to make 1k MRR in 3 months. Otherwise you loose the job. You're the one responsible to manage it, choose what it is about and make it work. But advertizing, fees and tech stack would all be covered by the employer. If you already have a community, what would you do differently than what you're doing now?