What tool is suitable for use as a social network for members of the HOA?

Question

Social media

What tool is suitable for using it as a social network for members of the HOA?
Requirements are simple:
1. General chat
2. Forum
3. Ability to store <= 1Gb in files

Answer 1

Forums are long dead.
Use the VK Stoll group.

Answer 2

I did it on wordpress, the only thing that delivered the problem was storing a bunch of scans