What syntax are you looking for? If you want C syntax, D will be the closest (most valid C code is also valid D code). If you want Ruby syntax, there's Crystal. Zig feels more verbose to me. For example, there are no multiline comments and no operator overloading, which kind of got to me when I tried Zig. This is, of course, purely subjective. Some people like the Zig syntax.
True, but you mentioned Nim earlier, and this is a discussion of Zig, which hasn't even reached a stable release. D is an old, stable language that's still under heavy development. It's used by some companies and is able to support an in-person annual conference. I have no concerns about the code I write today working ten years from now.