American Quarter Horse

I am selling my quarter gelding Rey with a heavy heart.

I bought Rey in 2020 from a cutting stable because I was also in a cutting stable and I really liked this sport and wanted to do it.
Unfortunately, my life circumstances then changed drastically. As a result, I had less and less time for Rey. Now he has been in an open stable for 3 years and has been ridden off-road as a leisure horse. He goes really well in the trailer, is social with other horses and doesn't bite. He went on a palm ride and also enjoyed a trail ride to a country festival with an overnight stay.
He is basically well-behaved off-road and is easy to handle when he trusts his rider.
He is therefore not a beginner's horse but needs a strong rider.
However, as Rey likes to work and is enthusiastic about everything, preferably every day, he is simply too underchallenged in my hands as I unfortunately don't have much time and this won't change in the long term.
That's why I'm looking for a good place for him where he can get the training and attention he needs.