Tablet recommendation

Not at all, iPads can do all of that stuff, they just need some accessories. Most rugged tablet use is done using cases, and HDMI is pretty rare on tablets for good reason. A usb-c to HDMI is a very cheap accessory.
A good Android may well be a better fit here but iPad can definitely meet those criteria.
Not the USB one
 
USB ports, can’tise flashdrives for storage or transfer of data/images etc.
We do this all the time on my partner’s iPad Air. Yesterday I connected an SSD and imported a video project to Davinci Resolve which was created on Windows, then edited it with keyboard and mouse on the iPad before rendering it.
IPad has changed a lot
 
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