I have no vested interest in:
Cabin Bright | Innovative 12 volt LED Lighting
But I have done business with them in the past and have had very good results with their products, support, shipping, and advice. Having an issue once with an intermittent bulb they cheerfully replaced it 11 mo. after purchase!
The owner / manager is very generous with his time and has a great deal of RV experience (does RV shows etc.). I'd bet they could guide you through your needs / wants.
Basically, you'll need to identify the bulbs base type, then pick the approx. lumen output and color temp you're interested in. Our coach is 100% LED but there is a variety of bases and styles used throughout.
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EZGo-TXT, Yamaha-G22E, CC Precedent