Myself I generally search by character or pairing rather than freeforms, because I don't read much in fandoms where I don't know canon. Though I do sometimes search for freeforms but they tend to be small weird stuff (generally when something catches my eye when I'm already skimming or on tagging my own fic).

Well, I just added the Femslash tag to a few of my fics. And then when I was labeling one I noticed that Boys Kissing shows in the dropdown and Girls Kissing doesn't. So I added Girls Kissing and that now makes four fics tagged with that, so maybe that could become canonical. (And then if it does will it be capitalized? Because I typed it in with capitals but it's showing all lowercase.)

And I noticed that the freeform Polyamory has subtags of Moresome, Foursome, and Fivesome, but Threesome is not connected to it at all that I can see and I think it should be.

So those are my tagwrangling suggestions for the evening.