Advice Request What Are Your Prefered Second Opinion Malware Scanner/Scanners?

Please provide comments and solutions that are helpful to the author of this topic.
Currently using HitmanPro (free) and Malwarebytes (lifetime license). I like both as they have a right-click to scan context menu option which makes it easy to scan downloaded files.

I've also used ESET Online Scanner and Emsisoft Emergency Kit in the past.
 
Microsoft Defender has an 'offline scan' option which re-starts PC then scans the system before the operating system loads.

It is compatible with other antvirus software (I tried it with Kaspersky installed).

Considering that Defender has pretty good detection rates, I'd say that it makes a good second opinon scanner.