LinkedIn Sales and Marketing Expert

I'm a commercial photographer based in South Carolina. I take photos every day for businesses in my area. They hire me to come out with my camera and take pictures of their crew doing work like construction, roofing, tree care, and landscaping. They then use these photos for their social media campaigns and website development.

I'm looking for assistance with the following sales and marketing tasks:

Building a list of 500 companies that are in my target niches (public utilities, plumbing, HVAC, electrical, cranes, landscaping, tree care, construction, grading, roofing, auto mechanics, etc). This would be done via Google, LinkedIn, and any other online research that's helpful.

Following these companies on LinkedIn and then interacting on their content intelligently

Connecting with people within these companies that might be associated with hiring photographers (perhaps marketing managers or social media managers)

Identify brands represented in the photos that I take for my business (for example: the saw might be by Stihl, or the carabiner might be by Notch)

Going through my Pixieset photo galleries and determining which photo shoots have provided good photos to share on LinkedIn to attract attention.

Researching whether the 500 companies listed above are doing their own marketing or using a marketing ---------- ’s common for them to use marketing agencies to run their websites and social media.

Liking and commenting on posts that involve the companies mentioned above or that are relevant to the industry in general

If you have good skills and experience on LinkedIn and in sales research, I want YOUR input on how to attract customers in this specific niche! I believe this job would be about 10 hours per ---------- your subject, please type WINDYBALOON864 so that I know you made it through the job description.
Thank you!
Brian