the best wallet according to me is nano ledger it is the safest wallet till date try it you will love it.
Ledger Nano S too is also the best for me, not only for storing Ethereum but also in storing bitcoin and other coins as well.
I usually use MEW on the phone with the Trust application. It is very convenient, because I do not need to enter the key every time I want to transfer.
Didn't used Trust application but I'm hearing a lot of people suggesting this.
I might try this wallet along with MEW. And myetherwallet still is a good wallet that's only for free but if you have the opportunity to buy ledger, you have to have it.