Are you a sales representative for SAMD51 ;). We all get rather attached to our MCUs, my microcontroller of choice is esp32. Runs at 240Mhz and has 2 cores with WIFI and bluetooth. So you can have your motor control running on one core and you could have a tiny webserver running on the other.
I am starting to get more into stm32s more recently, possibly because custom pcb manufacturers like jlcpcb stock the MCU and will solder it for you onto a custom board.
I’ve had my eye on the stm32g473. It runs at 170MHz and has 3 FDCANs. It even supports weird things like USB PowerDelivery.
From a jlcpcb perspective, the stm32g473 is an ‘extended part’ so labour isn’t free. The chip is $8 (or $3 for 500+) then you pay $3 labour i.e. for someone to add it to the pick and place machine.
I might sound like I know what I’m talking about, but I don’t - I’ve never made a custom board but am doing some research!
Update: the STM32F407 (slightly less powerful) is a ‘basic part’ (free labour) and is $4. This is probably good enough for me. This chip is similar to the infamous stm32 ‘black pill’ dev board which ‘should’ come with a STM32f411.