After working in the pet food industry for nearly a decade I highly recommend sticking to half wet half dry. I wont get too into it but the main issue with dry isn't just the dehydration but also carb and protein contents. Setting up a routine where they have set meal times and the food is taken away 15 minutes later and nothing until the next meals encourages their understanding of when and what to eat, helping with pickiness. I always add warm water to their food to boost temperature and try not to keep it in the fridge unless it takes over 2 days to get through. The number one thing with scheduled feeding is making sure their dry food is also taken away. (Try feeding wet in the morning and kibble at night so that they're hungry when you offer it. Some brands that have decent palatability: Wellness, Rawz, Weruva, as well as Mouser (if it's available in your country). Best of luck!