https://www.enneagraminstitute.com/type-descriptions here's an overiew! i identify as a 4 with a wing of 3. your wings will always be one type down or one type one from your dominant type. for example, 6w7 or 6w5, 2w3, or 2w1.
in terms of the aio charcters; i'm pretty sure that jason is a 7w8, both an enthusiast and a challenger.
eugene is almost definitely a 1w9, reformer and peacmamaker. (ones with a wing of nine generally are observers and sometimes seen as being cold hearted)
connie seems like she would be a 6w7?
i'm still relatively new to the whole thing, so i'd love to see your thoughts. was i accurate in my research? how would you type other characters? and what's your enneagram type?