I think you are on the right track of starting with the basics. The general advice on this forum, and a good one, has always been to fly the plane for a year or two and determine what you really need vs going on a shopping spree after buying a plane :-) I am not sure if you are already instrument rated or not. If not, your desires may change after the training. And don't assume a full glass cockpit is the natural choice. Plenty of pilots here prefer the six pack with AI & HSI replaced with non-vacuum counterparts. The six pack instruments can still give you more information at a glance than when you have the read the digits and interpret them to get the same information. You will find what you like, but it takes time, especially if this is your first plane. Remember - there are plenty of other important things to save up for than flashy instrument panels.
For brands, almost all manufacturers had issues with them in flight so I can't say there's a spotless example that could be recommended. Some could say Garmin for the integrated cockpit that you can have with AP, NAV, PFD/MFD, XPDR, etc. But there's Dynon as well. Garmin does have a touch screen counterpart, the G3X touch. It's user interface is similar to but different from the G1000. I would say offer someone a $10 burger for a $100 flight and play around with their instruments and see what you like.