Through. Pronounced like threw, but means something like: you can go through this way or something like that.
The word "through" rhymes with "stew" and ends in -ough.
Plough
Dough.
Tough
scruff
Dough Though Plough
Breakthrough, clickthrough, feedthrough, readthrough, walkthrough,
For words that rhyme with "tough" and end in "ough," you could consider "rough" or "slough." These words share a similar sound pattern.
scruff
enough
Plough, Drought
caught