Large touchscreen tablets or TV displays for business

I'm looking for options on fairly large tablets or displays to use in my business for production boards and task assignments for employees.

All I need them to do is have a web browser which will have a drag and drop sorting app, and looking for the largest display available for a low cost. The apps have Android, ios, and web versions so it doesn't matter much what it uses.

I'm seeing either infrared frames you can install around a regular TV or 20" basic tablets. Any ideas?