I received a follow-up from one reader, Adam Roger, who said that xkpasswd did a good job overall, but he had found another tool to be a better alternative and it’s free as well. It’s called Password Meter by Safety Detectives.
The user types in a word or words and then clicks on a button and the software will change the starting input into a much stronger password (rated from 1 to 100.) For example, the word "benediction" (score of 12) can be transformed into “b=nedicT10n” (score of 91) – still easy to remember but hard to decypher.
Thanks, Adam, for the feedback.