Régis Grison

This plugin is made mainly for french associations, because of the french 1901 law. Feel free to contact me if you think your contry have the same kind of need and I should make some adjustments for it. 
This plugin allow to handle association members by customizing the registration fields to avoid needing an additional listing. It also allows to keep track of the subscriptions. 
Note: This plugin will make use of the ACF (Advanced Custom Fields) plugin and will also contact my server to check for news about add-ons.

Law 1901 association

Handles members of an association and their subscriptions. Mainly for french associations under 1901 law.

deenison

Lorem User Generator uses <a href="https://randomuser.me" rel="nofollow ugc">randomuser.me</a> API to generate as many random user data as you want to your WordPress for application testing. 
It’s like Lorem Ipsum, but for users.

Lorem User Generator

This plugin is helping us a lot to generate dummy users for tests.

Great and simple. Just works

Ideal plugin for testing environment. Hasn't been updated in a while, but works flawlessly still on WordPress 5.1 and PHP 7.2.

Works perfectly still

Like Lorem Ipsum, but for users. A straightforward way to add randomly generated users to your WordPress.

Law 1901 association vs Lorem User Generator