Here are some possibilities:
* "Dog" is often used to describe a man's loyalty or faithfulness.
* "Wolf" can be used to describe a man's strength, wildness, or even a dark, predatory nature.
* "Lion" is used to describe a man's strength, courage, and leadership qualities.
* "Bull" is used to describe a man's strength, stubbornness, and sometimes aggressive nature.
Ultimately, the best animal description depends on the specific characteristic you want to highlight.
It's important to remember that using animal metaphors to describe people can be problematic, as it can reinforce harmful stereotypes.