Off the peg frames may not work for you, hire a custom frame , a short size with a tall head tube and a long seat post. to get reach the same and gain standover .. sloping top tube, or as I saw in some Dutch bike companies years ago, a J bent top tube, that like a ski tip curved up to meet the steerer tube higher

Of course with threadless steerer tubes they start out as 300mm long , just don't cut it down, add more spacers underneath your stem..
On my Trekking bike I use the extra steerer tube for a 2nd stem , it has the handle bar bag on it.