I have been working primarily with nontrads, atypical, and problem applicants for about 2 decades now and every time I hear this question, I kind of roll my eyes. Every school is nontrad friendly if you fit their stats, mission, and profile. I get students all the time saying one school or another isnt open to nontrads, I start rolling off who I know went there, from the very top schools all the way down the to bottom tier.
Many nontrads believe they can rely on their atypical background to make up for weaker stats, etc. this is false. Many nontrads also do not know how to express their story, often trying to fit in as a typical student or the opposite end where they just tell their atypical story.
Like all applicants, nontrads must have a coherent, concise and compelling narrative with solid EC evidence showing a strong pattern of motivation, commitment and achievement. Your application is evaluated within its own context and school’s profile, not in some comparison to other applicants.