Kitchen lit with exclusively PAR20 spot lights, how can I reduce shadows?
When searching for "bulbs with housing attached", I found that this actually exists! For a PAR20 bulb, the housing is a 4" housing. They sell a product called "LED Recessed Retrofit Downlight." You would remove the trim that's already installed, plug in a pigtail then shove the new housing retainers either through the gap between the drywall and the existing housing, or directly into the existing housing if there's enough spring tension. Hopefully it lands flat? 


I also started looking into adapters so I could put other format bulbs in. It seems like the name of the thread on the PAR20 bulb is called E26. There are adapters that will go from E26 to GU10, which is the plug with the 2 little prongs. The bulbs that would fit that would be called MR16. The adapter ends up pushing down the bulb by about 1", and the beam on MR16's go as wide as 60 degrees. I think this would be the cheaper option, but slightly less effective in reducing shadows.