How could Kanye make it better?

Shit, I’ll bite.

Vanish, go do therapy. Come back in a year, be transparent about his mental health, explain what was going on, explain the work he’s done to get it under control, and make an actual, legitimate, full apology for everything he said and did while out of his mind.

Back it up with actual effort to make things right and show some support for the people he’s hurt.