Dash cam

Hi all.
I am looking for a Dash Cam that would fit a M/Benz, 10 plate Axor. This is item specific due to the fact that the company operates different vehicles within its fleet. I work for Bestpets, subsidiary of Batleys/Bestways. Now, its hard work trying to get a tyre changed…so trying to get a dash cam, that could save the company money, of decent yet reasonable quality, is ■■■■ near impossible. Privately purchased could cut down on fraudulent insurance claims…we have all had them…easy to follow through as the Depots No. is on the cab, and also real claims that could be “dubious”. It also helps save my ■■■ and keep my job.
So a basic but reasonable cam is required.
Any suggestions are appreciated, but remember, this is an individual truck, not fleet.
Best regards,
Kevin.