You should try the bikes out. I have found that some larger displacement bikes are not really tall-friendly. I'm 6'1", about 200lbs. HD Road King caused me leg cramps. My CB550 actually feels more roomy than my GL1200. Yamaha Seca II was good for me, but '90s CB750 not so good. '70s CB750s seem larger. Yamaha FZ6 nice fit. Suzuki SV650 a little cramped, Bandit 600 was better, etc., etc.
Bottom line is that you really need to try out some bikes, and get a feel for what you like.