No such things as homonyms, they are now called homophones.
The word you want is 'righter' meaning more right.
The answer is which, but you mean homophone, not homonym.
The homonym of "drenched" is "drentched."
Hour is a homonym for our.
The homonym for 'suite' is 'sweet'.
The homonym for 'census' is 'sense'.
Was is a linking verb. It does not have a homonym.
The homonym for "mourning" is "morning".
A homonym for "grays" is "greys."
The homonym of sauce is "source".
The homonym for chord is cord.
The homonym for "vale" is "veil."
The homonym for 'build' is 'billed'.