In this sort of comparison Clojure looks quite good I think. It gets the full power of the JVM and ecosystem plus the full power of Lisp macros if you really ne

In this sort of comparison Clojure looks quite good I think. It gets the full power of the JVM and ecosystem plus the full power of Lisp macros if you really need it. Normally, it's a small orthogonal language with a highly typical 'Clojure' style of writing programs. For people who like Go, they can easily switch to Clojure without relearning Concurrency stuff. They can use core.async just as Go-blocks. To make it even easier you don't have to pass around pointers ever, you can just pass around to references to immutable data or safe reference type.