You can also use a Raspberry Pi compute module in an appropriate carrier. I use the CM4 for work and consequently it’s all I use at home too. Lovely versatile device that fits in whatever carrier you want (including one that mocks a regular pi) and it has industrial grade flash.
An IO board that adds the IO ports that the e.g. CM4 lacks. There's a decent range of them from different suppliers, but Raspberry Pi have one themselves called "Raspberry Pi Compute Module 4 IO Board".
