Reuse of the quill/inkpot for So You Want To/ has been proposed. Are we doing that? To be fair, most of the SoYouWantTo/ pages lack other subpages (I think?), so this button will almost never show up in that context...
Has an icon
LP Archive logo, white-on-red
"Haruhi" H with red Haruhi figure, or...
...the H by itself, if the details in the first suggestion are too unclear at that small a scale.