GSP
I'll give that a big ol' +1. Since you already have another dog, the GSP energy issues will be dealt with by your original dog. Both will be much happier pooches, will play like heck all day, and come inside at night to love on ya and enjoy your company.
German Shorthaired Pointer, the
Swiss Army Knife of Dogs.
Point out game for a hunter? yes.
Retrieve shot game for a hunter? yes.
Track game for a hunter with nose? yes.
General varminting around the homestead for a farmer? yes.
Affectionate family dog? yes.
Big enough to be a credible threat to goblins? yes.
Territorial/protective enough to protect family & kids? yes.
Alert enough to wake/alert you when Something Isn't Right? yes.
Generally friendly to folks, once introduced? yes.
And low-maintenance with that short hair. Our current female is 45#, our late male was 65#. If you don't neuter the male, he will likely have a physique like a middle-weight boxer (pugilist, not dog breed) and be beautiful. I had no problem, as a newbie dog owner, training and getting an intact male to mind.
I have a few threads here at APS about Ten (our late male GSP) and Misty, (our live female GSP).