The phrase "are best reflected" is correct and usable in written English.
It can be used when discussing how certain qualities, characteristics, or ideas are represented or demonstrated in a particular context.
Example: "The values of our organization are best reflected in our commitment to community service."
Alternatives: "are most clearly shown" or "are most effectively demonstrated".
His talents are best reflected in the many perfectly cooked seafood dishes on the Infinity menu.
Its preoccupations are best reflected in the revamped news media, which now focus more on fashion designers and beauty queens than on the dark realities of a poor and violent country.
And it's in those late pieces especially that Hardwick's unparalleled interest in the pace and brutality and dreams and dramas her beloved Manhattan always seems to provide are best reflected, bringing to mind another poet, Marianne Moore, who once called New York "the savage's romance".
His personal anxiety and aspirations are best reflected in his letters to his brother-in-law, Alain-Fournier; in his correspondence with the poet and playwright Paul Claudel; and in his book À la trace de Dieu (1925; "On the Track of God").
The differences in the stability of the insurance system are best reflected by the indicator [pr-]av/[pr+]av.
Molecular responsivity refers to contingent maternal behaviors that occur in response to child behaviors; and are best reflected by the frequencies of occurrence of these contingent behaviors.
This is best reflected when you learn where JRR Tolkien was formulating the ideas for Lord of the Rings.
This international outlook is best reflected in Japan's policies and the vibrancy of its young people.
Horace's devotion to CCI is best reflected in our new Medford dormitory facility, which will bear the name "Hagedorn Guest Center".
The leap in worker consciousness is best reflected in the rising number of labor disputes that have gone to arbitration or to the courts.
Amsterdam's intimate character is best reflected in the narrow, bustling streets of the old town, where much of the population still goes about its business.
