I headcanon Phasma related to Palpatine. It would actually make sense in canon given that Hux and Kylo are descendants of Imperial officers (Brendol Hux and Vader) so it's only meet that one of the three most important leaders (besides Snoke) of the First Order is a relative of the late emperor :)
Ooo, yes, I rather like this headcanon! I’m pretty sure Palpatine didn’t have any known relatives, but that doesn’t mean he didn’t have any. And tbh it definitely makes sense for a lot of the First Order officers to be descendants of Imperials who may have fled to the Unknown Regions following defeat.
But I have to admit I’m also here for Phasma being nobody important (in terms of her heritage - there’s no doubt that she is important) and acquiring her position through hard work and skill. Partly because I think it’d be really interesting to see how this affected her relationship with Hux and Ren, both of whom could be seen as benefiting from nepotism.