You can use coinomi and it is good enough to sore your bitcoin. Besides, electrum is trusted and well known wallet that you can install. But be sure to download and install it from official website.
You will start knowing that coinomi wallet is a bad choice after weeks of using for example like
1. If you create more than one BTC address you won't be able to access the second address unless you find way to get it's private keys, meaning you will need to learn how to use iancoleman website
2. Coinomi wallet isn't full closed source like trust wallet