Here is a set of arm64-ready Docker images

  docker run -it --rm multiarch/busybox:arm64 /bin/sh
  docker run -it --rm multiarch/ubuntu-core:arm64-wily
  docker run -it --rm multiarch/ubuntu-core:arm64-trusty
  docker run -it --rm multiarch/ubuntu-core:arm64-utopic
  docker run -it --rm multiarch/ubuntu-core:arm64-vivid
  docker run -it --rm multiarch/ubuntu-core:arm64-xenial
  docker run -it --rm multiarch/ubuntu-debootstrap:arm64-wily
  docker run -it --rm multiarch/ubuntu-debootstrap:arm64-vivid
  docker run -it --rm multiarch/ubuntu-debootstrap:arm64-trusty
  docker run -it --rm multiarch/debian-debootstrap:arm64-sid
  docker run -it --rm multiarch/debian-debootstrap:arm64-jessie
  docker run -it --rm scaleway/ubuntu:arm64-wily

Source code: https://github.com/multiarch