Out of curiosity, I was browsing the websites of the many fine eating establishments around the ICC and downtown Indy to see if any were still requiring masks when not seated so myself and others can patronize or avoid as we please. I only went by info on the websites, so can't guarantee 100% accuracy.
It ended up not being much of a list, but feel free to add or update as needed. Of course, it is all moot if Marion County reinstates a mask mandate.
The whole two restaurants I could find that state they require masks when not seated:
(Cafe Patachou "strongly encouraging" but not requiring masks)
If you are not comfortable being around the unmasked in a restaurant, better get your takeout/delivery apps ready.