How good is Estonia to move and live in as an Indian?

I would like to know what is the comparative cost of living in Estonia as compared with say Germany. I know there are several sites to search and compare on google, but I know from those living there.
I want to open up a company which can be operated from anywhere in the world, meaning online. I am living in UAE but would like to move to an EU country to take advantage of being in EU. How expensive is it? Which is the most modern city in Estonia? I am impressed by the quality of education and startup opportunities in Estonia, and that propels me to it.

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