The Spacing Guild has started a Hub Exploration Assistance Department project to help explore the ETARC Hub! Check the link below regularly to access the lists of discoveries our members make. Rare and unique discoveries will be listed to allow visitors to the hub to find the best stuff quickly, such as diplos, exotic planets, Traveler NPCs, Theta blueprints and more!
Spacing Guild members participating in the project: Myself (Merimacdwarf-orc on PSN), Vice Director BoomstickJoe, Red_Wings_2014, Jacob_2000_Lol, Imperialforce8, KnightAlese, Kingvithe1st, InfiniteDeath8, LordMarkov, TNT_Musician, and Dthurs have arrived in the ETARC Hub and our discovery lists are now in the above link.
Use the signal booster coordinates we give in our discovery lists to navigate to the stars with rare discoveries. Here is a link to a thread where I explain how to do this: