Use Electrum wallet, it's safe, well at least has been for years 
Mycelium is also a good option 
I second your thought about the electrum. Electrum has been serving traders for many years without any drawback. What I like most about this wallet is that anyone can operate it easily. I have never bumped into any case of electrum being hacked. The other wallet you have mentioned is also doing good job. Mycelium is also a good option