I adore Sofia! She and TJ are 100% ship material for me.
We get a delightful interaction between Sofia and TJ in this week’s episode. TJ has been shown to get bored and restless very easily/often, but we see Sofia keeping pace with him here. We know that Sofia can be a bit bold and outgoing when she wants to be, and I feel TJ would definitely encourage that (after all, he seems super impressed with her in the drinking scene). Plus, her assertiveness and sass would be something that would keep him on his toes.
In a previous episode, we saw TJ singing along to music (even when he didn't really know the lyrics, lol) and I could also easily see her singing along to music with him.
They seem like they would be a fun couple! It would be so awesome to see an interracial couple, especially when one of the characters is black, since it is still a pretty rare thing to see in anime.