I don't think brand awareness is that important, as agents should be focused on building their own brands and studies show that an agent's brokerage isn't a big factor in consumers' agent selection criteria.
Why do you want to start your own brokerage? Nowadays, there are several brokerages that enable you to recruit agents, provide leadership, support their productions, while shifting the liability and back-office operations to the brokerage. That's a much more attractive and more profitable way to go in my experience.
Before building your value stack, think hard about who is your ideal client (agent). Does he or she want minimal fees, flat fee commission structure, great coaching and training, equity, residual income opportunities, cutting-edge tech, great company culture, &/or something else?
What are ideal agents' goals, challenges, and dreams? Where is their current brokerage falling short? What solution(s) can you provide to get them to the next level and beyond?
Be specific, b/c if you try to be everything to everyone, your business model will likely be unprofitable. For whatever you want to do, how much production do you need to bring in to make the value stack work financially?
Get out in your market and build relationships. Build rapport and add value before you expect them to join...changing brokerages is a big decision for most agents. Be consistent in your follow up - many will say no @ first, but you want to be top of mind when their broker pisses them off or when business takes a downturn and they look for external drivers to boost their business.
I've recruited about 55 agents directly and built a global org of over 2,850 agents, and this has worked well for me.