6'3" or so a 29er mountain bike will feel right, but as a commuter,
a 35 wide tire at 80psi, will have a lighter rolling feel,
than a 50mm wide tire at 20psi..
there is a Schwalbe big apple in 29er size now, as well as in 26"..

frame clearances for 29ers , of course will accept the narrower tire,
as 622 is the common rim size to both ..