How to get the prebuilt binary of `uclibc`?

Question

I'm planing to collect the libc.so generated by uclibc/musl in different arch(arm,aarch64,mips,etc) to do some reverse enigneering work. But I find it slow to build a whole toolchain on different arch using buildroot. Is there a platform holds the pre-built uclibc binary? Note that the binary is just for analysis and not for just work. So a random version or vender is acceptable as long as the arch is right.