There are a lot out there in C++ land, and I'm sure C has a lot too. You can't really go wrong with any if them tbh, just check if it has a lot of stars and go for it. I've used microprofile before and it served me well. You can view live data from an embedded webserver.

Perfetto is a powerful one from Google, but I've never used it.

Also, don't overlook gprof. That works via auto instrumentation done by the compiler, so it'll give you the most detailed look at performance with zero work from you (besides interpreting the sometimes massive amount of info)