https://www.pcgamer.com/add-a-speedy-nvme-boot-drive-to-your-pc-for-only-dollar37/

Most of the best SSDs for gaming are SATA-based models, because they offer a better bang for your buck. However, pricing on faster NVMe drives are starting to come down. In fact, you can snag a 256GB model for just $36.99 today.

That's the sale price of Patriot's Scorch 256GB. While not massive, it's big enough to serve as your PC's boot drive, with room for a few programs and games (your mileage will vary, of course). It's also dirt cheap for an NVMe drive of this capacity.