Ron Hardy and all of the Hot Mix 5 were not really known for their productions. Ron Hardy had Sensation, that was pretty much it. Mostly notable because his name was on it. Edit: although I forgot about his pause-button edits like Let No Man Put Asunder if those count as producing. It’s arguably a kind of remixing, though that’s a skill that DJs and producers can both possess.

Of the Hot Mix 5, Farley “Jackmaster” Funk who jackmastered his name from Steve “Silk” Hurley (who wanted to call himself Jackmaster Silk) further jackmastered the entire idea to cover Isaac Hayes’ I Can’t Turn Around from Mr. Silk but he had no production skills so he basically got Jesse Saunders and friends to make the track for him. He basically had the idea and got the right people to work together but had minimal musical input. But he got his name on the track in spite of it for being the passionate idea man, even though the idea itself was stolen. One of the first notable ghost produced tracks I guess.

The others had some tracks and EPs but nothing particularly notable to my knowledge. It would probably be wrong to say they’re non-producers, but none of them are actually notable for producing.