Glad to be of assistance ^-^

For one, there's always the "opposite" of whatever other person you've already made. Self explanatory, a common choice, but also a nice and easy option to follow. You can also create someone a lot like yourself or, something I do once in a blue moon, create a character like yourself but leaning more towards how you aspire to be rather than how you really are. You can also create someone loosely based off a favorite character of yours, maybe adding that person's unique quirks or appearance your creation.