Does anyone have an eReader standard in their corporate environment? Not many of them seem to be very secure in a corporate environment. Remarkable 2 is often requested, but at the moment this is a no-go due to the inability to control content.  Has anyone addressed this problem (or decided they can't!)?

As we see an increase by Shadow IT due to remarkable we currently investigate the Books ePaper devices as this devices might be able to included in MDM. The remarkable is not ready for enterprise as it does not support MDM an encryption.
It seems the marketing of remarkable is great and many think this is the only device on the market. The reality is that there are several e-paper devices available running Android what is MDM ready.
Don’t be trap the marketing of remarkable what states it is paper, this is not true as it comes with cloud services that destroy your nice data protection approaches 

Here are some of the ways that corporate environments can address the security concerns associated with eReaders:
Implement a mobile device management (MDM) solution. An MDM solution can be used to manage and secure eReaders, as well as other mobile devices that are used by employees.
Use a whitelisting or blacklisting approach to control content. A whitelisting approach allows only approved content to be downloaded to eReaders, while a blacklisting approach blocks access to certain types of content.