Luke and Rowan together. After everything that happened in Empire Strikes Back, its refreshing that Luke discovered another force user even though he and Rowan didn't know it at the time.
Roger is one compassionate B1 Battle Droid. He always cheers up Rowan.
Rowan's Rousing Speech to his family that as long as they were together, it didn't matter that they had became fugitives of the Empire.
A small one, but during a tense stand-off between Jabba and Graballa's forces, Dengar and Boba are actually pretty chummy, even doing an awkward handshake, perhaps as a nod to their friendship in Legends.
Season 2
The very ending where Return of the Jedi had became more meaningful. Rowan was able to reveal his role as a Jedi and Luke couldn't help but be at awed. Luke believed he was the only Jedi but immediately after defeating the Empire and redeeming his father, he found out the boy he became friends with was a fellow Force user like him. Hope of rebuilding the order was possible.
