Not all dishes are created equal
Number one complaint is my oversized plates or pans don’t fit in my current dishwasher. Good news, there are brands that have amazing flexibility that will allow you to accommodate your dishes.
The main features you should look for are adjustable upper racks that move up and down, this means you can lower or raise the height to fit large items in the lower rack. The easiest is the quick-release clips on either side of the upper rack, this allows to lower or raise the height even if the upper rack is full of dishes. You can save money and opt for a manual system, this means the upper rack will have to be empty when you adjust it.
Another feature is fold-down prongs dishwashers will make loading large items easier. Look for dishwashers with fold-down prongs in both the upper and lower racks.
Lastly, for those who need some extra space there is a third upper rack for cutlery and small items. This feature is usually found on the higher end models.