What is the opinion of Reddit about the
Monoprice Premium Hi-Fi DJ Style Over-The-Ear Pro Bluetooth Headphones with Mic and Qualcomm aptX Support (8323 with Bluetooth)?

That is subject to change soon because bt 5.0 that is being implemented more and more and codecs are becoming pretty well done now a days. Your only options below 150 are wh-ch700n, hd4.40, noontec zoro 2 wireless, this, mee audio matrix 2, the best probably being the 1st 2

I don’t know about the headphones above, but I can recommend these, cant find them on amazon uk though:link

$24.50 on the Monoprice site (which you might want to try on mobile or something because you may have internet issues; the link works for me).

The price is higher on Amazon: https://www.amazon.com/dp/B0783GX57G