Hi Mom,
Boston! I love it!
May I suggest
Boston Guitar Lessons
It may be what you're looking for, it may not.
I've have three grandsons 2, 6 and 8. Two of which I am teaching the guitar and uke. I can't be much help in Boston of which Jones Hill I am reported related. ( Proof is another question!

)
In the meantime, there are many, many guitarist both novice and seasoned willing to offer their expertise from the forum here at GFB&B.
Enjoy!
**
LC