Sony Inzone M9 maybe? $798 on Amazon https://www.amazon.com/dp/B0B3SHR8TF
KTC M27P20P also appears on Amazon below your budget, not sure how good it is though?
https://www.amazon.com/KTC-Monitor-Speakers-Computer-Vertical/dp/B0BG3XZFY7/ref=mp_s_a_1_3?crid=WUUJ8INEWIPJ&keywords=hdr1000+4k&qid=1687885827&sprefix=hdr1000+%2Caps%2C193&sr=8-3
Innocn 27M2V
https://www.amazon.com/INNOCN-Monitor-Computer-Connectivity-Adjustable/dp/B0BCK1Z5FD/ref=mp_s_a_1_11?crid=WUUJ8INEWIPJ&keywords=hdr1000+4k&sprefix=hdr1000+%2Caps%2C193&sr=8-11