Thanks for reaching out here! QuickBooks Online provides the many valuable reports so you can review specific areas of your business at a glance. I'd be happy to point you in the right direction so you can get back to what you love!
Here's how to generate a report for products by vendor;
1. Open Reports from the left menu
2. In the Search field, type Purchases by Product/Service Detail
3. Select the Report period
4. Click on the small ⚙ in the top right of the report to select your preferred filters
You're all set!
Please don't hesitate to reach back out if you have other questions. We'd love to help!