Go to a box store and check out Logitech keyboards, there is bound to be one that would suit your needs. They make both hardwire and wireless units, by high rise I am assuming you mean ergonomic and they make several models of the ergonomic variation. Best of luck!
The keyboard that came with my computer is a compact low rise keyboard. Often when I type I sometimes will hit two keys at once because of my large hands and fingers. Any suggestions as to what kind or model keyboard I may purchase to correct my problem? I presume a high rise keyboard would do.