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It's a good idea to audit each page and improve upon the optimization if needed. I agree that editing the URL is not needed in most cases. First, make sure you follow a keyword map that shows which pages should rank for which phrases. So assign each keyword to the correct page. Then, decide which keywords from the map for a specific page should be in the title tag, heading tags, content, alt text, and from internal links to this page from other pages. For any keywords currently ranking well, you should test a few optimization tweeks to see if you can improve your ranking a little bit.

Thank you for the link. I will go through it.

TW, Don't keyword stuff the alt tags.  The alt tag should accurately describe the image for people who have images turned off on their browser. Each image should have a different description and have a good reason for being on the page.

Thank you for your prompt response. Yes, my products are categorized under each collection and then individually as well. In total there's around 200 individual products and around  50 other pages including few blogs. I agree it's a time consuming process. I also wish I knew which ones could be regarded as the easiest to target. Is it better to start with the keywords our site is already ranking for?