Anti virus software for Mac

This is a very common question and we are glad you asked. The very best antivirus, security, cleaning and overall maintenance app for Mac OS is Mac OS itself. Adding any of these types of third party apps does not add any additional layer of security to your Mac. If Mac OS is simply kept up-to-date and otherwise left alone it will remain stable and secure. If you feel like you must add something, please buy Malwarebytes Pro. DO NOT use anything else or your system will be slow, unstable and appear buggy.

Please also read Effective defenses against malware and other th... Communities

I have never used or recommended any. See information in macOS - Security - Apple