It is literally a million dollar question. Though, you may get confused when plenty of options are available in front. Bitcoin has become a revolution as it has provided an alternative to the conventional
It provides you
It is the best wallet for desktop users. Electrum is basically a software wallet; it means Bitcoin gets stored in a set of files on desktop or laptop. Currently, it is available or Linux, Mac OS X, Windows, and Android. It gives you the freedom to store your Bitcoins on your personal computer.
It’s not a complete selling and buying platform like Coinbase. In fact
It is the technology allowing Bitcoin and other cryptocurrencies to survive. Blockchain.info is identical to Coinbase as it is also a virtual wallet but you cannot sell or buy directly using Blockchain, it clarifies that your storage space for Bitcoin is separate from your marketplace of Bitcoin.