Android isn’t an OS!
Another Linux option is to go down the Android route. A few brave companies have attempted to push Android laptops and Android hybrid devices, such as the Dell Venue 10 7000 [see Reviews, p17,
An alternative to this is to get an Android tablet and pick up one of the many Bluetooth keyboard case options or alternatively just buy a Bluetooth keyboard and mouse, as Android via the handy Linux kernel does support pointing devices and full keyboards.
The limitation as with Chromebooks is that many won’t see Android as a full GNU/Linux distro and people do have a reasonable point. We’ve used a Nexus 5 to write on with a separate Bluetooth keyboard. It works but multitasking is highly limited, as you might expect, in terms of when you Alt+Tab between apps you’ll find half the time they’ve closed and will restart from scratch. Running anything more than Gmail and Chrome tends to be the limit.
Personally, we also don’t think Android apps work very well on larger screens and we’d prefer the Chrome OS approach of using the web browser, as browser apps are designed for larger screens. However, it does largely come down to what you plan to use your device for, Android tablets and phones are fine for low-resource computing but run more than a couple of apps and they can struggle.