Sizes are all,over the place - personal taste and style. Mine are 5 1/4.

Go to the store and see what the common sizes are. Pick from them. The handle sizes depend on the cabinets and the use. We have no information about that. My kitchen is all knobs, no pulls.

I like pulls in proportion to cabinet size so no common size but made to look good in the space , I even do some vertical and some horizontal it takes quite a lot of time to figure out and you need to be aware of how each one relates in function , like do they hit each other .

Is anyone aware of companies that make multiple sizes of pulls in the same style? We are looking at a modern square edged pull in matte gold but seems as if we can only find one or two sizes in each style, making it hard to accommodate different size drawers.

Try Top Knobs https://www.topknobs.com/gallery. I used a couple of sizes for pulls and knobs that matched the collection. You can also order samples for $5.00 each. When ready to purchase consider Build.com which had better pricing and free shipping. Good luck

The Top Knobs Princetonian Bar Pull fits your checklist except for the matte gold part, they offer Honey Bronze so take a look. The design you like, in I believe 12 different sizes. The added bonus is that its projection allows fingers to easily fit inside - a problem with some shallower pulls. Shop at different websites for best prices.

https://www.topknobs.com/products/pulls/bar/m1042-princetonian-bar-pull-5-1-16-inch-c-c.html