I was recently studying this question and here is what I found:
- You can use Coinbase if you are in US and you will feel pain because of their fricking commissions
- You can use some exchanges like Bitfinex, Bittrex and some others but still the rate would be awful
- You can use new platforms like Cryptology and some others but there is no information on them atm but there might be the better rate
- You can use LocalBitcoins (which is banned in Russia)
What is your choice?
What number is fricking and awful? This post is totally useless if you dont give any information. None whatsoever.
In general centralized exchanges should have lowest fees. But it depends from one to another.