I made this spreadsheet a while ago. Thought I would share. Not taking requests for updates, but if I add another show it will automatically show up. Currently lists Ultraman through Ultraman Ace. https://docs.google.com/spreadsheet...hDj2BDKkrR8UTT2LxqC/pubhtml?gid=0&single=true
Blake, if you want to keep building your spreadsheet with Toho characters, Ambassador Magma, etc., the new Club Tokyo includes katakana and YJA links.
I mostly worked from the Fandom website to get the katakana. I saw the links on Club Tokyo and thought that was pretty cool. The links here are all done with spreadsheet formulas. Sometimes the results are wonky, but I think for the most part it works.