Unfortunately I donāt think there is.
It needs to happen after episode 4 and before episode 12 of the season to make sense.
For 5, were looking into Ezraās family and donāt have the crew for most the episode. Maybe it could fit in the start but it doesnāt fit the theme of the episode.
For 6, weāre on a Kanan and Sabine episode.
For 7, weāre on a desperate mission for fuel so theyāre is no time for a training break.
For 8, weāve got an episode for Hera and her family so it doesnāt blend well.
For 9, weāve got the Zeb and Kallus episode.
For 10, weāre in the Jedi temple and get the original motivation for Kanan to be training Ezra. If it was to fit here itād have to close the episode which could feel a touch odd.
And finally weāre at 11, where it just breaks the flow of the whole episode if included.
So as much as I think the scene is great, I have setup Ezraās combat advancements through introduction texts (not ideal but itās not like itās missing) and Hera does mention in ep 11 that Kanan has increased Ezraās training a lot.
The 2 episodes I potentially could include it are 10 and 5. But Iām open to ideas and suggestions! š