Looking for Red, Blue, UV, RGB on 16mm.

I see so many suppliers with various emitters ( X-E XP-C, XR-E, Osram, etc) in Red, Blue, Green, RGB (MC-E) etc. and the pricing varies quit a bit.
I’m in need of a few emitters on 16mm stars, in Red, Blue, UV, and possiblly RGB ( or RGBW) MC-E types.
Any thoughts on the best suppliers ? ( with best prices)