i am new here ..But donot inderstand which is the best wallet for bitcoin. I want to know which online wallet is the best for bitcoin and which wallet fees is low .
To start with bitcoin, I would mainly recommend you to use an online wallet if you are not planning to hold a huge amount of bitcoin (few thousand dollars). Try blockchain. info just to begin with. They are a very old company and a trusted one. However, if you are tempted to use an offline wallet, I would suggest you to use Electrum wallet. The best part of the electrum wallet is that, you don't have to download the blockchain in your system. Just download and install, you are good to go.
However, if you are planning to hold a huge amount of bitcoin, then try a good mix of online and offline wallets as it is not recommended to keep all your bitcoins in a single place. In that case, you can try, Coinbase, BlockChain and Electrum all together and keep a percentage of your total holding in all three just to be on a safer side.