Social media and branding manager

The aim of the project is to create an engaging social media brand as a professional services provider. The intention is to reach and engage with the maximum audience, but in a professional way (no negative publicity stunts/ marketing gimmicks). I want to keep growing organically and associate for the long-term on a retainer basis, as content has to be created consistently.

The assignment is structured in two phases -

Phase 1 (covered here) - Develop a branding strategy across various social media platforms (LinkedIn, Youtube, Instagram, Facebook, Twitter, Google My business etc.) including weekly timelines (content to be created by me on your advise but formatted/ streamlined by you). The strategy has to be for me as an individual and the company separately.

I would also expect guidance on the best way to maximise the reach (not necessarily online but even offline), engage with audience, promote products etc Also, which format would suit better for my profile?

The branding strategy for each social media platform is to be documented along with timelines for implementation.

Please prepare your pitch according to the above requirements. My current social profiles are linked below:
1. https://www.linkedin.com/in/vijaykumarpuri/
2. https://twitter.com/home
3. Instagram is currently private and would like to continue it so/ can explore creating a separate handle
4. Youtube - nothing as of now

Phase 1 would involve a trial run of creating content for atleast 3 weeks across platforms as covered in the branding strategy document. Based on actual implementation feedback, the branding strategy document should be modified.

Phase 2 (to be taken up once Phase 1 is complete) - Implementation of the brand strategy and constantly creating content by way of formatting and editing posts, videos, reels etc. The content has to be ready to upload atleast a week in advance. I want to gradually develop a team for the same, as the followers increase across platforms.