In an industrial application you're likely to be using the Raspberry Pi Compute Module, which has an eMMC option. You also have the option of using an industrial SD card with one of the other Pis.
If you're using a Pi at home and need greater reliability, a quality portable SSD [0] will get you pretty far. The systems I run that way have always been quite fast and reliable.
(don't use an SATA to USB adapter if you can help it, they tend to be flaky and it's a very strange place in a home system to try and save a few bucks, even though a lot of people do it)
[0] https://www.samsung.com/us/computing/memory-storage/portable...