You're going to love to hate this: Best choice I made was using WordPress!
I run https://rpgplayground.com, a web tool to make RPG games without coding (6000+ user published games) The app itself is written in Haxe. My website is WordPress.
Haxe because it will be easy to port to any device.
Why was WordPress the best choice? Basically everything you need has a plugin.
I needed a forum: bbPress
I needed a community where my members post updates: BuddyPress
I need to send out a newsletter, and most Saas options are crazy expensive: plugin mailster.co, 1 time payment. (Using critsend.com)
Needed some faq page with search, needed a captcha for registering, experimented with ads, post updates to discord, user reporting system, ... You name it, there is a plugin for that.
I also have an external person who writes my newsletters, but isn't allowed push the "publish" button. All thanks to the user roles functionality.
Of course I needed my own plugin to integrate my app and show shared games. I could have written that myself, but then I would lose out on time developing my tool. So I was able to hire a cheap php WordPress developer who made my custom plugin. Went great!
WordPress is so crazy powerfull, that if you want to create some community website, it offers everything you need.
I know my experience is not what many of you would expect, so therefore thought it was interesting to share it with you.