I would suggest joining something like the HI lifter forum, and asking there, you will then get a WIDE Mix of feed back from all brand s of atv's and side by side owners, rather than just a one brand like site

NOT sure of any that stand out as catering for TALL riders
but I have a buddy that is 6'5"
and owns a Yamaha, side by side and never heard of him complaining about it being small for him,, but not sure on exact model, I know its a few yrs older, 4-5 yrs.

think its Rino, if I recall right and a 700 or 750?

and ME too at first a side by side gun came to mind before this being a UTV deal LOL

Good luck, update with what you get!