Collocations for worthwhile - adj.

be, seem
become
make sth
Their gratitude made it all worthwhile.

consider sth, find sth, think sth
You might find it worthwhile to consult a lawyer.

extremely, particularly, really, truly, very, well
definitely
hardly
The gamble seemed hardly worthwhile.

financially, socially
the pursuit of socially worthwhile goals

Worthwhile is used with these nouns:
cause, effort, end, endeavour, exercise, idea, investment, job, project, read, reading, trip, undertaking