so far finding well-established c 'modules'(libraries, e.g. glibc, musl, openssl, curl,etc) has not been a problem for me, there are probably more good quality c 'modules' than other languages, they're just not put together with some package manager like go|rust provide.

conan(or even the light weight tool called clib) could be of help but I have not tried them, as I don't feel the need yet.