Oh you know the Grand Army Remenant or Grand Army Resistance at their last bastion of Kamino...and Master Plo now grand master and Yoda gone saving Anakin from death and thus kept him to the light and GAR retreat to Kamino as the 1st, 3rd and 13th Armies regroup and elements of the 10th pulling out of the fight at Mandolore
Yeah can't put it to mind mostly a AU set in SW where the scattered heroes of the Clone Wars return from the fringes of the galaxy to lead a new generation against the Empire.
Basically the Jedi somewhat survived Order 66 and most of the Kamino Clones were dechip now form the core of the Grand Army Resistance at there final bastion of Kamino as the Clone Wars drag on for a few years against the Seps and Collective. While GAR struggled to stay afloat and recover from the Fall of the Republic.
With the Empire having won the Clone War now turn its eyes on absorbing the Outer Rim. The Outer Rim Coalation too few and not strong enough to stop the empire make contact with GAR to ask for help. Ambassador Padme Skywalker and General Anakin Skywalker travel to Tatoonie to meet with Outer Rim represtives.
Yup been over a decade and Master Yoda died saving Anakin like season 6 such as he was for luke only Yoda was there and Anakin escaped Master Plo was now Grand Master and GA retreated to the only bastion of Kamino they lost the battle but won by survving
Yeah Lothal is the Normandy of the Grand Army the Defenders are successors to the old Venators and the Endurence class serves a extra role as a Fleet as well as a Assault Ship providing both air and ground support while serving as a command ship of post Clone War era fleets.