Ecommerce keyword research at the product level is manageable yourself, especially once you understand the kinds of modifiers shoppers typically search with.
Look for Size, Color, and Feature Modifiers
Specific product attributes often have real, if modest, search volume worth reflecting in individual product page content.
Check for Comparison-Style Searches
Terms comparing your product to a specific competitor or alternative are common, high-intent searches worth understanding.
Review What Customers Actually Ask About the Product
Questions from reviews or support inquiries often reveal exactly the terms and concerns worth addressing on the product page.
Next step: Use the SEO Audit to check how your product pages currently perform for the terms shoppers use.