What kind of wallet will you advise? a purse should support different coins on different block. It is necessary that it be reliable and with two-factor authentication. 
The private keys are more safer than the 2 factor authentication so if your picking a wallet with private key access then it can be the best wallet,there are lots of multi coins wallets are available but hardware wallets are most secured so buy a trezor or ledger nano s and it will cost you less than $100 but your funds will be safe forever.