"Sizzling hot" is an expression that is often used to describe something that is highly attractive or intensely exciting. However, there are several other synonyms that can be used to convey a similar idea. For instance, "scorching" is a great alternative to "sizzling hot". This word indicates that the item in question is hot enough to burn or scorch. "Blazing" is another synonym that suggests intense heat. Other options include "smoking", "red-hot", "fiery", "torrid", and "sweltering". These terms can be used interchangeably with "sizzling hot" to add variety and freshness to your speech or writing.