Honestly that scene where Bakugo, Kiri and Iida are talking to Roki before his fight with Toya I find it so beautiful and cute that he still cares about his brother despite probably never really meeting or having any significant connection with him. Because I'm thing he focuses on with his family is knowing what they like. Because simple things like favourite food are important aspects to his siblings because he knows nothing about them.
And him saying "Maybe I'll have to have a meal with him sometime" (or whatever the quote was) was just like...please my heart.
He still cares for his siblings so much. He knows how badly they were hurt by what happened, how broken and destructive his family was. And yet here he is still thinking about his brother.
This is my Roman empire