running “snap find” with a 2.24 based snapd on 16.04 i get the following:
ogra@styx:~$ snap find
Name Version Developer Notes Summary
docker 1.11.2-9 docker-inc - The docker app deployment mechanism
lxd 2.12 canonical - System container manager and API
mongo32 3.2.7 niemeyer - MongoDB document-oriented database
rocketchat-server 0.55.0 rocketchat - Group chat server for 100s, installed in seconds.
that list seems a) very short and b) pretty random