Used corporate laptops are readily available from numerous channels. Most buy the 3-year warranty with a planned replacement at 4 years, and there's roughly 1 cycle per year (which lines up with a new model released each year). These get sold to refurbishers and resold from there.

IOW, figure out which Dell Latitude, HP Elitebook, and Lenovo Thinkpad models were released about 5 years ago. Then head over to eBay, Amazon, Micro Center, Newegg, etc and search for that model. Be very careful on specs - many remove and destroy the SSD for data security, and that often includes the mounting bracket. There may be a wide range of options, from a 1366x768 screen to 4k, or SATA vs NVMe, etc.

It looks like you can probably get a Lenovo T470 for about $150 or so; even less if you're willing to deal with your own hardware repairs/upgrades.