Most coaches work via phone or online video call, so geographic area isn’t as important. There are many ADHD Coaches listed in the ADDitude Directory here: https://directory.additudemag.com/listing/guide/adhd-coaches. You can narrow the list by looking for those that really hone in on executive functioning skills. There are also a few EF coaches out there.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism