HDMI Extender over Ethernet recommendations

If you want true reliability and something that really works without headaches, Metra is the way to go.  You’ll spend more money, but you will have absolutely no regrets when using their products.

https://metrahometheater.com/av-accessories-and-hardware/av-distribution/hdmi-extenders.html?limit=all

It's blowing your budget, but you can also look at the Ruipro fiber HDMI cables.  A 12 meter (39.37 feet) is $149.

https://www.amazon.com/RUIPRO-4K60HZ-HDMI2-0b-Supports-HDCP2-2/dp/B0759CXK4H?th=1

Not sure how they compare to ethernet extenders, but the Ruipro has gotten very good feedback and excellent 4K HDR support.