I have a bike in the rack now that would be a good fast fitness bike for a taller rider, perhaps 5 ft 10-6 ft 3 more or less.
It is a Marin Larkspur with an aluminum frame and carbon forks, and –nicely–carbon seat stays. It will have new wheels, tires, chain and freewheel, brake pads (rim V-brakes), and a newish seat and grips. It is 9 speed Tiagra equipped.
More soon … the cost will be between 200-$300.