The answer is that there is no homophone for can, but can is a homonym.
The homophone for "hymn" is "him."
The homophone for "farther" is "father." They are pronounced the same but have different meanings.
The homophone for "refuse" is "refuse." The first "refuse" means to decline or reject something, while the second "refuse" refers to waste or garbage.
Your is a homophone of you're. In some dialects, yore is another homophone.
the homophone for stationery is stationary
The homophone for "meant" is "mint".
The homophone is dense.
A homophone for "taut" is "taught".
Hour is a homophone for Our
A homophone for stock is stalk.
The homophone for "ale" is "ail."