I'm not sure what is available in the search handler for regular content but you can use <perch:showall /> https://docs.grabaperch.com/templates/show-all/ in your search results template to find out.
I've been using the perch_content_search on sites, and works fine. One thing I can't get it to do is to search Page Details (perch3_pages table), so the Page Title, and Description are included in the results.
Has anyone been able to achieve this? Been…