If you are redoing the kitchen, I don’t know if you are thinking of a complete remodelling like electricity rewiring and adding outlets, changing tiles, new storage space, working space, work top, new big sink but I think it worths considering.
We bought all our appliances when we moved into this house in 2010, so all of them are 9 years old.
Hood - Neff is doing its job
Dishwasher - Siemens (same as Bosch), it’s getting a bit nosier than when it was new, doing alright. I heard there are some good feedback on Miele dishwasher, both friends have them for more than 20+ years.
Fridge - Siemens - some problems a few years ago, repaired by Siemens. Read more here. I talked to the repair guy, he said every brand has its problems, the point is how efficient and the price of the repair service. Look carefully when you choose fridge, the newer fridge has smaller space interior due to thicker insulation. Also maybe get a fridge and a freezer separately if you like to buy frozen food. My fridge is fine, but I think the freezer is too small to be of much use. (American style double doors fridge).
All my other appliances like convection oven is Siemens, recently I’ve checked the temperature, it is still accurate. Happy with it as it can go up to 275ºC/530ºF. Maybe you can consider an oven with steaming function if you like that type of cooking.
I have used electric range and gas one in the past, actually 2 of them, but personally, I prefer the cook top separated from the oven. My induction cooktop has a larger surface than the size limit imposed by a standard oven. And then cleaning is a bliss with induction. Oven built in the shelf is much higher and much easier for cleaning.