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I'm not sure if there's much point to this one, but just in case someone ever needs it- here's a page that lists all Chinese homophones, with a page for each word length: http://hskhsk.pythonanywhere.com/homophones

I am defining homophones as words with identical pinyin. You can choose whether or not tones should be ignored by selecting the appropriate option.

 
 
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Just added a quick feature to my growing little dictionary/HSK list browsing script that allows you to see the characters for each (or multiple) HSK level(s) grouped by character and all ordered by frequency. Check it out here: http://hskhsk.pythonanywhere.com/radicals?hsk=14

 
 
I have seen this question asked a few times, so here's the best answer I am able to give.