If we have the example:
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how do you think this line finishes....

Through the tears, through the rain
Through the sorrow, through ?????????? (one or more words)
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I think we have a case of something expected. Solution for songwriters when expectation gets boring, like obvious rhymes.. don't rhyme! - use the line as a transition to another melody. Treat with a pleasant surprise..

Like:

Through the tears, through the rain
Through the sorrow, through the hard laughs
That always resisted the strain

.. or something (hey, I don't get paid here!)

It's ridiculous going on about obvious rhymes! Who writes'em - No one here, right?