Finding a good UltraWide 4K monitor for MacBook Pro (Retina, 15-inch, Mid 2015)

Hi Community,

I am looking for 34" Ultra Wide 4K Monitor for my MacBook Pro (Retina, 15-inch, Mid 2015). I was pointed to LG models, but some of them have USB-C (which I don't have) or HDMI that do not support Thunderbolt 2. I know you can purchase adapters from Thunderbolt 2 to HDMI, but what do you think is the best monitor for this setup today.

-=CB=-