1. Online Thesaurus: Websites like Thesaurus.com, Merriam-Webster, and Dictionary.com offer comprehensive lists of synonyms for various words. Simply search for "attractive" and you'll get a wide range of alternatives.
2. Dictionary: Most dictionaries also provide a list of synonyms alongside the definition of a word.
3. Thesauri Books: If you prefer physical resources, there are many thesaurus books available at libraries and bookstores.
4. Context: The best way to find the perfect synonym is to consider the context of the word "attractive." For example, if you're describing someone's appearance, you might use synonyms like beautiful, handsome, alluring, charming, good-looking, gorgeous, etc. If you're talking about something's appeal, you might use words like appealing, desirable, captivating, fascinating, intriguing, etc.
5. Language Resources: There are several online language resources and tools that can assist you in finding synonyms, such as WordHippo and Power Thesaurus.
Remember that the synonym you choose should be appropriate for the context and tone of your writing or speech.