Near Rhymes (similar sound, but not perfect):
* sunny
* money
* honey
* phony
* boney
* scone-y (informal, slang)
Eye Rhymes (spelled similarly, but pronounced differently):
* pony
* bonny
Figurative/Metaphorical:
* spiffy (stylish, similar to "tony")
* classy (elegant, similar to "tony")
* ritzy (luxurious, similar to "tony")
The best option really depends on the context and the meaning you want to convey!