You can show drop-down, radio, or checkbox-style filters using the Post Grid Combo plugin. This article will show you how to show filters as a drop-down, radio, or checkbox style.
To begin, insert a “Post Grid – Filterable” block.
Click on the “Filterable” tab.
Add a filter group by clicking on “Add Filter Group.”
Expand the filter group and add the filter group name and some filters by searching for them on “Search Terms.”
Now change the “Group Type” inline to “drop-down,” “radio,” or “checkbox-style.”