Shopify Sitemap Review and Fix

I need an expert to review and possibly fix my Shopify store's sitemap. Some products appear to be missing, and they're not all appearing in Google Search Console. I currently use Magical XML/HTML Sitemap app. My website is www.earphoneguy.com. I cannot tell if the sitemap is functioning properly or not. Please review the information then bid. My budget is $10-$30. This is a small job.

https://earphoneguy.com/tools/sitemap
https://earphoneguy.com/sitemap.xml

I am looking for a quick turnaround.

Requirements:
- Review current sitemap for missing products
- Fix incorrect URLs or other errors
- Ensure all products are indexed in Google Search Console

Ideal Skills and Experience:
- Shopify expertise
- Experience with sitemap management plugins
- SEO knowledge, especially with Google Search Console

Please provide examples of similar work and your approach to this issue.