Are you looking for a standard bulb that goes into a desk lamp? If so, a friend of mine swears GE grow bulbs help to supplement her north facing windows: 6-in 1-Light White 32-Watt Par38 LED Grow Light https://www.lowes.com/pd/GE-6-in-1-Light-White-32-Watt-Par38-LED-Grow-Light/1000974670

I currently use LED shop lights to supplement natural light. I think this is the one I have: https://www.homedepot.com/p/305059320

I also have a a bunch under 100% fluorescent light using 8 4 foot T5 high output bulbs. It’s insanely bright and the Hoyas seem to love it. I’m only 3 months into this experiment so I’m hesitant to say for sure that it’s the best. But it definitely feels like the best so far. Pretty sure this is exactly what I use: https://www.amazon.com/dp/B019IMM7VK/ref=cm_sw_r_cp_api_glt_fabc_6EH2TC6EEACA7PCC7TFB