It’s great to hear from you!
My current favorite budget monitor for editing is the BenQ SW2700PT. It has a relatively high resolution (2K) and amazing color accuracy with coverage of almost the entire Adobe RGB color space. For $600 it’s really hard to beat.
If you really want something that’s a bit higher resolution at 4K you could check out the BenQ SW271 which is basically the same as the 2700 except it has a 4K panel.
At a normal viewing distance, I find it hard to justify the extra cost of the 4K panel over the 2K. I have personally used the 2700 with no issues and I haven’t really found any reason to need to upgrade to the 4K version.
As for connectivity to your Mac, it should be seamless assuming you buy the right cable. If you send me a photo of the ports on the side of your MacBook Pro I can recommend the perfect cable to get everything connected properly.
I hope that helps!