Chertan.
The only thing is it its quite far away, about 150ly or so from sol (i think). its firmly in the top half. There are many if's a small hop away.
Also i had no idea this was the home of the pmf called "rock rats". Around the 2.x patches, it was back in the years when i had turned attention to the rocks, and for a few weeks also had the sandbox mission to find the home system.. having peak places to mine was the key requirement.
I found chertan of course (helped by a long forgotten eddb query). I was there every day for about 6-9 months, zero traffic in the system apart from me. So i "claimed" it as my own. Then suddenly, only on the beta of the mapping patch, did i find out that apparently there was players in that system with some intent to steal
my planet. I practiced exactly what i was going to do

I did leave some of the gas giants for the actual pmf on reflection because its nice to be nice etc, and i had other landmarks planned to go tag. Fun days.
The system itself is a treat, well worth a visit at least once. The only problem is its an industrial economy, so has a pretty boring mission board, but the outfitting is good.