If you need to protect your WordPress website with multiple unique passwords, WP Site Protect is a great pick. You can create unlimited passwords that can be traced – who used it last time and when, and you can force your fresh baked password to be renewed when it’s used for the first time. This is also highly customizable. You can edit all the texts you need or you can even replace the whole template by including a single php file on your theme. You can read more about that on the FAQ. This plugin is stable, but it’s still under development. If you find any issues, feel free to open a support request or a Github issue at WP Site Protect repository.
