Can I promote my Discord or Telegram group here?

For rules about promoting your Discord server, it's allowed on this subreddit. But your Discord server must be Hellenism-related, and don't post your Discord server if that doesn't correspond to what this subreddit is about. The same applies to the Telegram group. Also, I wanted to let members know on this subreddit that if you've an issue with ANY of the Discord or Telegram groups posted in the comment section then, you should contact one of the moderators with proof of what the issue is you're having with the Discord or Telegram group you're in. We care about the safety of our members here in this subreddit. Depending on what is going on in the Discord group or Telegram group itself, we will remove the comment of the OP commenter post of their invite link of Discord or the scan barcode of the Telegram group. If the OP tries to post the invite link again or scan the barcode of the Telegram group again, that will result in a ban. Keeping members in this subreddit in a healthy, safe environment that even includes being in Discord or Telegram groups. If there is a Discord or a Telegram group that has a toxic environment that needs to be brought to one of the moderators' attentions, that way toxicity can be avoided, as that is against the rules here in this subreddit.  

Can I post about giving free readings to others, and can I post about my Etsy shop here?

Asking people for free tarot readings here isn't allowed here. You can, however, offer help if a member in the subreddit asks for help with interpreting the cards that were pulled from their reading with their gods or goddesses. Tarot advice/help is welcomed! If you do tarot readings on Etsy, it is okay to post on the self-promotion page as long as you don't ask members on this subreddit if they would like a free reading.

My shop isn't on Etsy; can I post about my website link to my shop here?

Yes, as long as your website link to your shop pertains to selling Hellenism goods, then yes, that's fine! 

Can I post about looking for friends here? I need more Hellenism friends, help!

If you're looking for friends here, you can post an introduction about yourself, but that's not required to join this subreddit. You don't even have to post an introduction if you don't want to. It's just for people that are looking for friends; you can easily see if anyone is looking for friends by this sticky highlight megathread. :) 

You can post whatever you feel most comfortable with if you want to start with an introduction; however, please don't give sensitive information out when you're typing out the introduction. Simply exchange whatever platform you wish to communicate with the person that is interested in you in a private message instead. Other than that, there aren't any strict rules about what you should post on your introduction page.