Harry's Links
Harry considers Draco to be one of his closest friends and cares for him as you'd care for your best friend. Draco was actually Harry's gay awakening, but he doesn't have romantic feelings for him anymore.
Draco and Harry are good friends and have been since childhood. They sometimes bond over the fact that their fathers are terrible evil people who treated their mothers badly. Nowadays, they're basically like brothers.
Harry and Jolten are full siblings, sharing the same parents. He cares about her and wants her mental health to get better. He cares for her like he'd care for any family member.
Harry and Nynx are half-siblings with Nynx being older than him. He respects her for how she's older then him and is smarter then him, also caring for her. He knows she can see every timeline and feels bad about what she sees.
Harry and Ginny are half-siblings with the same mother. He cares for her and wants to protect her like anybody would their little sister, even if she's stronger than him. The two used to date before they knew they were half-siblings, awkwardddd...
Ginny cares for her half-brother, even though the two of them fight. She cares for him and knows he wants to protect her. She still finds it funny and kinda weird that the two used to be dating before they figured out they were half-siblings.