Finding synonyms for the phrase "decent guy" can yield a wide range of options depending on the context and desired connotation. For example, "upstanding citizen" implies someone who is law-abiding and civic-minded. "Kind-hearted gentleman" suggests a compassionate and chivalrous person. "Respectable chap" denotes someone with high moral standards and a good reputation. "Honest bloke" implies a straightforward and trustworthy individual. "Stand-up guy" implies someone who is dependable, loyal, and has strong principles. By using different synonyms, you can create a more nuanced description of a decent guy and tailor your language to suit your specific needs.