Under the settings battery and device care, they is a antivirus and protection that is free to use, no subscription to buy and checks your device on a daily basis. That's what I use.
I don't use any antivirus protection. Never had and never had a problem. I only download apps that I use on a regular basis and which have a high rating.
Use the device protection that is located in Device Care. I use it a lot. It runs daily scans thst scans for apps and malware. And it's free. It's part of the Samsung Knox system that keeps your phone safe.
