Hello!
Hope you are enjoying the game so far! 
Please check out our guild post and get in touch with one of us if we sound like something that you’d be interested in joining: [A]-Silvermoon Semi-Weekend Guild 7/8HC&2/8M LF Raiders!
A bit more of a personalized messaged to you: if you would decide to join us, you would initially join us as a social member. You could join us for normal and heroic raids and do mythic keystones eventually as you get closer to max level and equip appropriate gear, but we would expect you to prove yourself before we would consider you for a mythic raid spot.
Cheers for reading