You did not provide enough information to help you. Range - gas? Electric? Dual fuel? And budget? A 36" range could cost $900 or $20,000. A counter-depth fridge could cost $800 or $15,000.

Don't forget to budget for the exhaust hood for the 36" range, and the ductwork for that hood.

More generically, I suggest that you write down your requirements in categories such as size, performance, cost, aesthetics, reliability, service (e.g., can you get service for candidate brands where you live) and delivery. Using these, initially narrow down the brand choices using some extensive appliance site such as AJ Madison and the web sites for brands you know or discover. The candidates that meet all of the requirements can then be evaluated with respect to details.

This may need to be a recursive process because as more is learned in the research the new information may affect the requirements.

An approach different from formal or informal rooting around in a multi-dimensional trade space is to read many recent as well as more historical threads (topics) in the Appliance and Kitchen forums and allow your natural ability to form a gestalt of all the information to suggest good choices for detailed evaluation. You will still need a good idea of your requirements to evaluate the information.

Thirty inches is the sweet spot for the range market: more competition among manufacturers, more products, more features, lower prices. CR (https://www.consumerreports.org/join/ - $10/month digital) has ratings and predicted reliability estimates of ranges of all types and refrigerators. Follow up with owners' reviews -- obviously biased but useful -- on sites such as Home Depot and Best Buy.

For a 30" induction slide-in range Frigidaire has a good option at $1200 Frigidaire Induction Range Opinions (houzz.com)

Bosch has 30 and 36" models from $3800-$6200.

Sub-Zero for a frig.