I replaced my 1141 bulbs with warm white 36-3528 LED panels, that is the panels had 36 LEDs of the 3528 type. I also used some 18-5050 cob style LEDs. 3528 and 1210 are the same LEDs, 3528 is metric, 1210 is english.
My objective was to reduce the current drain while maintaining the same level of light. You might like more LEDs since you want brighter lights. I have never trusted the lumen ratings listed in the listings.
Color is a personal thing. I suggest you buy a couple of the type you think would be right for you and try them out.
I bought all of mine on eBay.
Here is a link to a vender that I used and has been good.