Collaberative project enablers?

I am thinking of starting up a collaberative project in the unpaid jobs section on this site. What I would need to make it work is, a site for discussions about ideas and to post assets, scenes and rendered movies on. Would Discord work? Are there better alternatives?

I have NOT USED THESE, and KNOW NOTHING ABOUT EM:

www.artella.com

Is this useful to you? :

Thank you for the reply, I’ll have a look at them.

There was an add-on here that added chat and ability to share parts of your scene with people. Maybe try that.