I've looked eBay, staticice, and Google Products. I'd prefer cheaper, but it seems like 90% of the product listings for this kind of monitor are sold out everywhere. 27 inches would be best, but I guess larger would be okay. but my dual monitor arms will only fit 27 inches or under. I could just the stand if there is a good deal on a 32 or 31.5 inch display.
It just needs a resolution of 2560x1440 (QHD/WQHD). And it has to be an IPS panel. And it needs at least a headphone jack to get audio out of HDMI, not necessarily speakers though speakers are usually a good indication that there is a headphone jack.
EDIT: So I went with VX3276-2K, and although the colors are a little crushed and the matte coating took a minute to get used to, I am happy with it. Viewing angles are good, size is good, it's light and portable. Games from consoles look really good on it. I might have been happier with a different model but the cheaper ones are all out of stock right now so for right now I'm happy with this one.
VX3276-2K ~$300 ticks all the boxes.