AFAIK, Unstoppable Wallet seems to be the most recommended one for multi-crypto mobile wallet by most of the community members for now.
Not only the Unstoppable Wallet is recommended by the community members for altcoins, but it is also recommended by Theymos
here.
If you have a large variety of different crypto assets that you need to store, there's Unstoppable wallet.
So, I guess everyone should use the open source unstoppable wallet and the abandon the use of the closed source Trust wallet.