Skaffen
I am now retired, but sold thousands of cookers in my working life.
I still prefer the British makes. Stoves, Cannon, Parkinson, New World, Leisure etc. They all have many years experience of manufacturing cookers for the British market. Not quite so fashionable at present, but the cooker with a grill at eye level, is much easier to use. The grill is simple to use, and simple to clean. At waist level, you often have to kneel down to clean it. The shelf on which the grill pan sits is also a good barrier to prevent grease being deposited on the ceiling. If you have not got a cooker hood fitted of course. If you have a waist level grill, one in a separate compartment is better than one inside the oven in my opinion. I would certainly have self clean linings in the oven. If the manufacturers instructions are followed, they are very successful. If your wife, or yourself, are keen cooks, it is worth noting how many shelf positions there are in the oven. The more the better if you do a lot of cooking. Although, home baking seems to be less popular, and microwaves are being used for a lot of cooking operations.
I would avoid cookers with automatic timing. Very few people use them, and they can be difficult to programme successfully.