Each Class C model design (with or without slides) will most likely be slightly different, dimensionally, from every other Class C model design.
Just look for a Class C that does not restrict tipping back of the driver's seat-back - after also sliding the drivers seat back the maximum amount.
I'm also 6'2". Our 24 foot Itasca Class C without a slide has the back of it's forward dinette seat right up against the back of the Ford driver's seat whenever the driver's seat is slid all the way back. However, Winnebago mounted the dinette seat back using a piano hinge along it's lower edge so that, when not in use, it can be tilted down and away from the back of the driver's seat - thus allowing the driver's seat back to be tilted back quite a bit after also sliding the driver's seat all the way back on it's rail.
Quite an ingenious design by Winnebago, and it fits me fine for long driving runs.
However, slides may present a difficult clearance design challenge whenever they start right behind the driver's seat.