Here are the oem brands and prices from 2017 that I purchased through a variety of places including amazon, local Toyota dealer with discount, and other online places.
Tax and shipping make a difference in total price.
LexusGXOR.com also lists many vendors you could order from.
Bosch Toyota (EB Toyota) is my go-to for OEM parts online. Pricing through them is the best in the US from what I've seen. ThankYou50 gets you 50% off shipping as well. They're not fast, but accurate and well-priced.