Is there anything like ASAP Utilities for Calc?

ASAP Utilities in an Excel add-in that offers lots of extra functionality. They don’t have a version for Calc. They have edit, select, find and other features that make spreadsheets much more versatile to use.

Where might I find a listing with descriptions of addins that are available for LibreOffice programs?

https://extensions.libreoffice.org/
https://extensions.openoffice.org/

Excellent! Thank You!