The year is 2021, nearly 2022, and JK Rowling has posted yet more TERF bullshit.
I'm not going to post it here. If you're trans, you've probably already seen it, and if you're cis, you don't need to see it.
It is far, far, FAR past time for you to drop Harry Potter if you haven't already.
I get it. Harry Potter was an important piece of many of our lives. It shaped many of our formative years. Choosing your house became a form of self identification for a not insignificant portion of the population. And you're allowed to feel mixed feelings. But there's one thing that needs to be clear:
Harry Potter fandom, in any form, especially done by TME people, harms trans women.
Now I understand what you may say. "Oh I'm not gonna spend any money on it but I'm still gonna make posts/fanfiction/etc about it"
And sure, not giving money that'll go to its TERF creator to fund her TERF desires is just about the bare minimum. But by continuing to engage with the work, by continuing to maintain a fandom presence, you are giving your tacit support to JK Rowling and anyone that agrees with her.
Your trans followers will see this, and the vast majority will be made to feel unsafe as a result.
But perhaps you don't care about trans women. You certainly wouldn't be the only one. So it only seems fair to mention a few other bigotries transphobia is joined by in the Harry Potter series:
Antisemitism: Goblins as a whole, trying to claim "Anthony Goldstein" as Jewish rep despite him barely being relevant and having an incredibly stereotypical name, and once again, GOBLINS AS A WHOLE
Racism: The name "Cho Chang", Lavender Brown starting out as Black in the movies before being whitewashed as soon as she became relevant to the plot
Homophobia: The use of werewolves as an HIV/AIDS metaphor, but where the infection actually IS dangerous to others, not to mention a character who actively targets children to "infect", trying to claim Dumbledore is gay and it never showing up anywhere in text
Sexism: Hermione's whole "not like other girls" schtick that's backed up by the universe itself, traditionally feminine characters being villainized (Lavender Brown, Umbridge)
These are by no means an exhaustive list, but worth mentioning nonetheless.
If you're looking to read other YA books instead, here's a few recommendations to get you started
Diane Duane's Young Wizards series is my top pick for anyone looking for another series about wizards coming of age while they face down the forces of darkness. It's been ongoing since 1983, and the author has shown an admirable willingness to go back and fix plot points that include topics she wasn't well informed enough to be sensitive about at the time. The author herself is actually active on this website, her url is @dduane
Katherine "KA" Applegate's Animorphs will always hold a special place in my heart. If you like sci-fi, aliens, and the horrors of war, this series is for you. The author is fairly vocal of her support for the trans community, and has a trans daughter herself. Her husband is Michael Grant, who both did some work on Animorphs and is the author of the Gone series which is also worth highlighting here
Tamora Pierce has multiple universes of book series largely focused on growing up in magical worlds. While her Song of the Lioness quartet and following series in the same world were great, I was always a big fan of the Circle of Magic books myself
Rick Riordan is well known for his mythology-based series. Starting with Percy Jackson, he contextualized Greek mythology in a modern setting, from the outset giving representation to people with ADHD and dyslexia. As he continued, writing series focusing on Egyptian, Roman, and Norse mythology, he added more representation into his books. While he has sometimes had issues with how he has portrayed these marginalized groups, he has largely shown himself to be receptive to criticism
Derek Landy's Skulduggery Pleasant series is another fantasy series that I quite enjoy who's author has shown explicit support for the trans community. While I am not up to date with the most recent books, it is my understanding that they include an explicitly trans and genderfluid character, and the books' magic system and themes goes into the nature of identity and names many times, in a way that even when it isn't explicitly trans, often FEELS very trans
The TL;DR is this: however you may try to justify it, participating in Harry Potter fandom in any way IS harmful to trans women, and there's a world of other series to go for instead