When programming, I never make the same mistake twice.

Cube, though pretty well known, still fits ‘small’ IMHO, Given it’s lows budget.

https://m.imdb.com/title/tt0123755/

fwiw, I really liked Pandora’s Star and Judas Unchained from the Commonwealth series for wonderful world building. not a space battle every chapter, but there is some really insightful warfare going on.