Leap - With Leap you find things based on your natural memory of that file.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
DEVONthink - DEVONtechnologies develops DEVONthink, DEVONagent, and other Mac and iOS apps for document and information management and web research.
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Elyse - The free version allows up to 30 tags.
SSuite Office - SSuite Office is called to be one of the most accomplished software developers for both beginners and professionals alike.