I wanted to put lights on the Hero Me 7.4 I am building for my cr10. I couldn't find any that fit standard LEDs so I combined two of the stock ones and did some clean up and printability sculpting.
Should work with your already finished HeroMe Gen 6 too I think.
The author remixed this model.
Combined the 3 standard LED holder with the light strip holder for dual 5015 fans.