@Lakshmana said:
Running Linux as base OS and using VMware in it will somewhat reduce the space to test two or three OS in it
Don't use VMware as a term for a product, that is confusing everyone. VMware is a company that makes many products. None of which is called VMware. It would be like calling something Microsoft. It could mean a lot of things. What VMware product are you picturing using?
In what way do you picture running Linux reducing space? And if you want to run Linux to run VMs, why are you dual booting?