The answer is that there is no homophone for can, but can is a homonym.
Antique is worth more money.
The homophone for "hymn" is "him."
the homophone for stationery is stationary
Your is a homophone of you're. In some dialects, yore is another homophone.
A homophone for "taut" is "taught".
A homophone for to is too or two.
A homophone for length is lenth.
A homophone for stock is stalk.
The homophone for "ale" is "ail."
The homophone is dense.
The homophone of "sell" is "cell."