Yes, you can find multiple tools for every purpose to manage your WordPress website. users can find free plugins and paid ones for every function. you can search for these plugins with descriptions and installation options at
If you are looking for user engagement plugins, check out this free WordPress tool to send push notifications to your users.
Truepush provides a free WordPress plugin that is easy to integrate and has advanced features for free. Websites can unlimited push notifications to the subscribers to engage them and improve conversions.