Boku No Hero Academia - (ona) (dub)

Season 4 | EOVA1 - Make It! Do-or-Die Survival Training, Part 1 Crunchyroll

Eraser Head puts Class 1-A through a disaster rescue simulation in an underground mall. The training turns into a real crisis when a series of structural collapses trap the students, forcing them to use their Quirks creatively to survive. Boku no Hero Academia (ONA) (Dub)

While technically "Original Video Animations," these are frequently grouped with ONAs on streaming platforms: UA Heroes Battle Season 4 | EOVA1 - Make It