Discovered a pretty good Imperial rank grind system as I and many others have found ADITI to be a bit too much hit and miss...
So there 4 Empire factions in HIP 10716, take on all the Imperial Data runs via cycling through the mission board from SOLO and OPEN then head for WU GUINAGI (11.87LY) here there are 3 stations with 4 Imperial factions. The missions are quite favorable to data runs between the two. The 2 closest ones are withing 200Ls, while the 3rd if needed is approx 1000Ly Away from the sun.
Keep in mind the to bring nothing bigger than a Python as there's only one LARGE landing pad. The rest are Medium, so bring an nothing bigger than a Python.
There are Orbital bases available in both systems but not 100% required, so if you don't own Horizons you'll still benefit from the station grind.