Your touch-enabled displays or tablets are fit for use almost anywhere. As long as it can be installed, you’re good to go.
However, depending on the use case of your screens some places will boost the effectiveness and engagement of your screens. For example, if you’re using digital kiosks for wayfinding, a key location would be the lobby of your building. This is because it is often the first place new visitors will enter who are likely going to need its services.