I built a tool for generating alias https://github.com/naveensrinivasan/unicorn . I was manually creating a lot of alias, I wanted something where I could run the tool and it
- generates a random email address
- verifies it does not exists
- creates an alias and then
- copies to the clipboard.
It is built in
go and have releases for https://github.com/naveensrinivasan/unicorn/releases
try it out and if you need post an issue or do a PR.