If only there was a sensible Microsoft alternative then I'm sure companies would have it on their roadmap.
One thing is sure though, it's not going to be Windows 10 with all the spyware and forced updates and adverts. You do realise that we've got a business to run and all this IT spend is an overhead ?
Why do you think that there are still lots of places runnning 2003 and 2008 based OS's