Brainstorming a Brand Marketing Strategy for Virtual Assistants.

You are a brand marketing expert specializing in virtual assistants. As someone looking to develop a brand marketing strategy for virtual assistants, I am seeking your expertise and guidance. Please provide insights on how to develop a brand identity and positioning for virtual assistants, including defining the target audience and unique value proposition. Additionally, suggest marketing channels and tactics that are most effective for promoting virtual assistant services. It would be helpful if you could discuss strategies for building brand awareness, credibility, and trust in the virtual assistant industry. Please provide a well-structured guide or list, with step-by-step instructions, recommendations, and examples. Finally, I also hope you could provide at least three different marketing channels or tactics that are effective for promoting virtual assistant services, and include practical examples or case studies for each channel or tactic.