A 'superbike' shape/'bend' is usually a good place to start. You really need to go to a well-stocked store and try some out by holding them in-place, and seeing if the reach to the bars, and the distance they 'rise' from the handlebar mount is to your liking. You can loosen your handlebar clamps and pivot them down to get a better idea of where the prospective bars will 'sit' on your bike.
If you try this, be sure that you adequately tighten the bars when you return your bars into usable position. And this is most IMPORTANT! Be sure to pump your clutch and brake levers until you get firm levers again for the brake, and that the clutch will totally disengage when you pull it in. You potentially could be introducing air into your lines if you pulled either lever while they were rolled-backwards while you were trying other bars.
This is especially possible if your fluid levels in the brake and clutch reservoirs are low.
Alternatively, you could totally-remove the handlebar clamp, and try to keep the handlebars upright, and use some towel and duct tape, zip ties, or a willing participant to hold them out of the way. I just don't know how-much freeplay there is to do this. Any time you mess with your hoses and cables, you have to be 100% sure you aren't going to pinch them. Move the bars fully side-to-side and ensure all is OK before you return to the road.