I strongly suggest the use of as many social platforms as possible for discussions. Please look into Discord as there are many educational servers that many people attend to from around the world to discuss and evaluate sciences etc... I personally trickle into a Politics discord channel and have many great discussions, where people share sources etc... for their viewpoints or to inform.
I am sure that you can easily find a good place on Reddit but I do recommend Discord for its active voice chat and text options.