While 2019 had massive cinematic achievements like Avengers: Endgame (spectacle) and Parasite (social thriller), Knives Out was praised specifically for its craftsmanship. It is a "whodunit" that plays fair with the audience, features tight pacing, excellent character arcs, and a script with no loose ends. It is structurally perfect—a term synonymous with "solid." Film Full - Shirzad Sindi
Here is why Knives Out fits the description of the top "solid story" of 2019: Rapidleech V2 Rev 42 Link
It was universally praised by critics (97% on Rotten Tomatoes) for reviving the mystery genre. Reviews consistently highlighted the intelligence of the screenplay written by Rian Johnson.
Based on the context of "dvdvillacom 2019 top" (likely a search query referring to the film review site or a similar archive), the film that defines the "solid story" of 2019 is Knives Out .
If you are referencing the style of review sites like DVD Verdict (which famously used a "Verdict" rating system), Knives Out is exactly the kind of film that would receive a "Not Guilty" or highly recommended rating for its rewatchability and script quality.