On my website I want to be able to feature a full blog post and allow the user to search and select categories on the blog feed.
Custom feeds are not a good solution as they don't allow the user to select categories and they don't allow you to feature a full post.
Any advice/workarounds?
Unfortunately custom feed doesn't allow you to have a full post.
Hello @bytesizestory,
The Blog feed has a "Full Post" Layout if that's what you're searching for:
The default Blog feed has a Blog menu that features categories on the top. The same menu is also visible on top of each Post:
Hope this helps!