There are 2 repositories under magento2-breadcrumbs topic.
This is the full path categories product breadcrumb
Magento2. Extension add breadcrumbs to pages in Magento2 that by default do not have breadcrumbs.
A collection of quality extensions for Magento 2 to help you build, grow and manage your Magento 2 stores.
Magento 2 Advanced Breadcrumbs extension helps search engines and visitors better navigate through your website. Also, it add breadcrumbs to the pages that do not have breadcrumbs by default in Magento 2.