There are numerous services on the internet that allows one to generate a secure and strong password. Most Password Managers have the option to generate secure passwords
A password manager assists in generating and retrieving complex passwords, potentially storing such passwords in an encrypted database or calculating them on demand. Here are a few of the most popular password managers:
A password manager, digital vault, form filler and secure digital wallet. 1Password remembers all your passwords for you to help keep account information safe.
Try LastPass, the best password manager, password generator, and vault for free. LastPass makes and remembers your passwords, so you don’t have to.
Try the Secure Password Generator service at https://passwordsgenerator.net/
Do you want to know more about password security? Vander Host follows the advice of Bill of Pixel Privacy who has written many highly informative articles including this one on the risks of password re-use: