Not sure who has the streaming rights in the US, but the best show of the 1990's and one of the very best ever for mine was NYPD Blue.
Dennis Franz starring as the recovering alcoholic detective Andy Sipowicz is simply must watch television. The best cop show by a mile.
NYPD Blue
Committed to reflecting reality, this series portrays the mature themes of life in the police department of New York City with an unprecedented combination of real life, real language and real dramas. Whether it's in the squad room or the bedroom, "NYPD Blue" will offer viewers the kind of realism more often associated with theatrical films than with network television.