I don't think it makes a "good story", but my parents have accepted me.

My uncle is an established child psychology reaearcher (had been "chief psychologist" and "assistant director" at multiple children's hospitals. When I came out, they reached out to my uncle to ask for advice (especially for how sudden it appeared to them, when it was literally since I was a young teen for me), which he basically replied "if [dead name] is talking to you about this, it's something they've been dealing with for a long time". I think this helped them a lot

My parents took some time to come to terms with my transition. They struggled with my new name and using the right pronouns, but they put in the work, and we have a fairly solid relationship now. We were never super close (still aren't), but I have no qualms giving them a call sometimes, or spending holidays with them.