

It seems that Christina has been able to convince the Showrunners to incorporate some of her own enthusiasms into La’an’s character.
In a TrekMovie piece, she’s quoted saying that she and Ethan Peck had a total of 75 hours of dance and fight choreography preparation over the season. The heaviest episode is in the back half of the season.
While I enjoyed the edgier La’an, Goldsman seems to have a very rigid idea that, in drama, trauma is the foundation of character development. It’s tiresome when every single character has to have a traumatic backstory, experience trauma in the show, or look forward to trauma (in Pike’s case).
So, as an example, it seems that the only way for Ortegas to have a character arc is for her to be traumatized and go through the process of overcoming that.
In that case, it’s better to have La’an move on. Between Tomorrow cubed and Hegemony II, we’ve seen two very significant life events for her that make it credible that she could finally more on.
I’m going to say any or none of the suggestions here may be right.
And some of them, like Inner Light, are awful choices simply because their impact is very dependent on having the context the rest of the series and characters.
The main thing is that Star Trek has a wide variety of tones. The way to success is to provide excellent examples of very Trekie episodes that are in the genre or tone that your brother already likes.
Don’t show them action if they like cerebral mystery. Don’t show them romance if they like action. Don’t show them intense drama if they’re into comedy. If they’re into animated comedies or anime, start with Lower Decks or Prodigy not TNG.
Examples from this perspective…
If they like psychological horror, then TNG’s ‘Schisms’ or Voyager’s ‘The Thaw’ might be best.
If they like action, Discovery’s two part pilot might be the one or even the movie Star Trek (2009).