A vast number of SOMs (System On a Module) is addressing edge computing today. Starting with the Raspberry Pi (maybe the most popular) and similar derivatives, continue with all these industry modules (e.g. SMARC, HPC), not ending with solder-in modules.
The choice of MCUs/MPUs (mostly MPUs -MicroProcessors) is not that vast - these days you'll see either x86 ot ARM architectures, although the RISC V architecture might add to this in the future.