I currently use a hardware wallet, such as the Ledger Nano S which supports multiple currencies, and adds new ones on a regular basis.  Some of the currently supported currencies are: Bitcoin, Bitcoin Cash, Ethereum, Ethereum Classic, Litecoin, Dogecoin, Dash, Neo, and others.

If you are looking for a web wallet, I enjoy the interface and usability of Exodus.  Easy to use, great portfolio interface, lots of supported currencies.