There are loads of Plugins you can add to Wordpress this forum being one of them here is a list of ones I use.

LOGINPRESS will turn your login page from a dull login to whatever you want this is mine.

Old boring Login

New Login

wpForo Forum

https://wpforo.com/

This Forum is made with this Plugin very adaptable with add ons and plenty tutorials to get up and running.

wpForo v2 is a modern perspective on the forum world!
This plugin changes your website discussion experience and provides with new forum layouts.
It’s totally improved with brand new innovative features.

https://wordpress.org/plugins/wp-statistics/

Do you need a simple tool to know your website statistics? Do you need to represent these statistics? Are you caring about your users’ privacy while analyzing who are interested in your business or website? With WP Statistics you can know your website statistics without any need to send your users’ data anywhere. You can know how many people visit your personal or business website, where they’re coming from, what browsers and search engines they use, and which of your contents, categories, tags and users get more visits.

Social Feed Gallery

https://wordpress.org/plugins/insta-gallery/

Instagram Feed Gallery is the most user-friendly Instagram plugin for WordPress . It was built to simplify the integration, to reduce time to have sites updated and to be on track with social media that shows best growing indicators.