Don't look at just entropy, there's password topologies to consider as well, see https://github.com/JohannesBuchner/PasswordTopologies
– SwashbucklerDec 16 '21 at 21:39
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@Swashbuckler: Your comment is wrong, I am sorry to say that. What you name "topologies" are just rules that some users / companies apply. Any rule means more information about the system, which means less entropy. Means, when you are talking about "topologies" you are talking about reducing entropy compared to a random password generator.
– mentallurgDec 16 '21 at 23:23
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Closed for now, if the duplicate Q doesn't satisfy your needs feel free to post a more specific question, indicating what is missing for you.
– Maarten BodewesDec 17 '21 at 00:49
https://security.stackexchange.com/questions/257611/why-use-random-characters-in-passwords
https://security.stackexchange.com/questions/662/what-is-your-way-to-create-good-passwords-that-can-actually-be-remembered
– Fleeep Dec 16 '21 at 19:04