TOML, extensions of json like json5 and hjson, a bunch of lesser known formats for nested structures like NestedText, UCL, kdl, Eno,sdlang, eldf, etc.
Also languages with some progrommatic capabilities like cue, dhall, jsonnet, nickel etc.
Non of them are perfect, and some are less suitable for certain use cases than others. But IMO pretty much all of them are better for human editing than json, and in many cases yaml.
JSON has a very minimal set of types and I regularly use all of them. I guess you could argue that integers and numbers could be combined, but I think that's it.
Also languages with some progrommatic capabilities like cue, dhall, jsonnet, nickel etc.
Non of them are perfect, and some are less suitable for certain use cases than others. But IMO pretty much all of them are better for human editing than json, and in many cases yaml.