Consider ClassroomScreen

Take a look at ClassroomScreen, a free and easy to use "digi-screen" for use in your classroom.  Simply project ClassroomScreen for a great variety of tools!

Choose/upload a background, Random name picker, Sound level monitor, QR Code generator, On screen drawing, On screen text and zoom, Work symbols, Timer/stopwatch, Clock & calendar, Traffic light, Calculator, Drag and drop icons, Dual widgets display, Language selection...

https://classroomscreen.com/

(Thanks, Shanna!)