The subject came to mind because I'm re-reading Jane Eyre and got into a discussion of the novel with someone who didn't like her as an example of a strong female character. The objections were, to my mind, more rooted in time and place, and not in Jane's character. So my vote is going to stay with Jane. She's smart and witty. She certainly has agency. She doesn't compromise herself. She has faults, like a real person would, but when she stumbles she picks herself up and is stronger for it. I think she's a great example, personally. Name your favorite example of a strong female character. You certainly don't have to go back to the classics for it.