Creating a slug for each thing

This is your best option, IMO. If your list is too long (+100 items) or just long, you can loop recurring workflows to make it happen.

or maybe:

as well as other options. I don’t know how big your list is or if this is even the most efficient, but it might also make sense to download the csv of your table, make changes with a script, sheets/excel, even notepad’s find and replace, and reupload it?