Social media manager

I am looking for someone to manage my social media for 2 businesses. My freelance photography instagram and facebook page and my web development agency on instagram, facebook, and Linkedin Page. Ideally i just want content to be posted 3 days a week.
I will have a google drive folder of images for the photography instagram - you can select any photo and make relevant captions
I will create content for the web development page every Sunday ready to be rolled out for the rest of the week. This will be articles and images and maybe videos too.

So to round up i need someone to:
1- take photos from a google drive and post images on 1)facebook and 2)instagram with interesting relevant captions/ hashtags relating to wedding/family and portrait photography - To post 3 times a week
2- Take content from my website/google drive and post them on linkedIn, facebook and make slides using a template on instagram. This will also be posted 3 times a week.
3 - Suggest ideas for content - Not compulsory but would help to get some ideas on what might bring in more traction.

I'd like to try this for a one month period and see how it goes before extending it further. I am not sure how much to charge for this but it could possibly be 1-2 hours work per week but i'm open to hearing how long you think it would take and how much you would charge.

Thanks in advance