I couldn't recommend any of those companies as being best value based on my research. Also be aware that while you may like white, that trend has hit its peak, and natural wood cabinetry is coming back strong in trends and is also easier to keep looking good long-term than painted cabinetry. Your area of the country will determine supplier feasability as well, since shipping out of the area could cost you many thousands. Budget is also a huge concern for someone just starting out on a kitchen renovation. Be aware that even the smallest of kitches (fewer than 10 cabinets) can cost upwards of $30K for cabinetry alone in higher quality brands. The cheapest route is usually Ikea. For mid-grade, you're going to need a $20K budget minimum for most kitchens. Between Ikea and mid-grade there are plenty of other options but all with compromises here and there on quality and durability. It is often said that a local cabinet shop can provide the best value, and there's actually some truth to that if you find a shop that does great work and will stand behind a warranty for it. Getting a durable finish done from a local shop is the biggest challenge, so if you go that route, definitely research finish quality and make sure you know what you are getting.

If you have a decent budget, check out the Harmoni line of cabinets or anything from Plato Woodworking. Lower budget might be Shiloh.

Is marshmallow cream/ Starmark a warm or a cool color?

Marshmallow cream is a warm color in my opinion