You can start by thinking about their personality traits or roles in the story. For example, if they're brave, a name like 'Valor' might fit. Or if they're a wise mentor, something like 'Sage' could work.
Well, one way is to draw inspiration from different cultures and their naming conventions. It adds depth and uniqueness. Also, consider using descriptive words or combining them to form interesting names. Another tip is to avoid overly common names to make the character stand out.
To name characters in a fictional world well, look at the themes of your story. Maybe a name related to a key element or symbol in the plot would be cool. You could also play with word sounds and syllables to create something catchy. And don't forget to make sure the name is easy to remember and pronounce!