Hard to say best as depends on the size and other factors but for me, it would be this unit from La Cornue Fe. it is just a beautiful piece made with the highest quality materials. A more realistic unit is the Fisher Paykel 9 series. Great looking and cooking piece that fits all kitchen designs. It has more of the modern-day conveniences like self-cleaning, clock timer, etc. Two totally different looks.

https://lacornueusa.com/cornufe

https://www.fisherpaykel.com/us/cooking/ranges/professional-ranges/induction-range-36in-5-zones-with-smartzone-self-cleaning-riv3-365-81892.html

So a speed oven basically is a microwave convection unit that utilizes both functions at the same or intermittently to get things done with the speed of a microwave but the browning nature of an electric element.  An air fry feature found in many regular stoves today is like convection on steroids. It is a higher-speed fan and computer-controlled algorithm that will crisp items thoroughly with the additional use of perforated trays so the food is cooked from all sides. Air fry is an option found in many new ovens today and works great. So speed oven is good for micro replacement as most speed ovens function as a microwave as well yet most air fry features are just an added option to a stove. Two different appliances.  Not to totally confuse you but this unit from GE is almost like an all-in-one as their Advantium technology does give results as an air fryer would. GE / MONOGRAM Oven

So I do agree as running just a cooktop on propane a service provider may not want to invest the time and money for a tank and running the lines. Won’t be cost-effective for them. To be honest, induction is a fantastic choice, many people swear by them. The pros are efficiency, heat control, speed, reliability,  cons may be expense, use of magnetic cookware, and the fragility of a glass top. The pros always outweigh the cons here for me.  Really no better or best to be exact but some do have higher quality inductors. Entry-level maybe a Frigidaire pro, mid-level like a Kitchen Aid, and the top is the Thermador Freedom which allows you to place the pot anywhere as the micro inductors will sense the pan.    Freedom Induction Link

The specs sheet looks like it does, but when I look at a physical unit it does not the door protrudes past the unit. Also in order to remove the bins, they are asking for 14 3/16 clearance on the freezer side otherwise the bin cant come out for cleaning.