Quick question, finally doing the arena but I want to make sure I don't step on a landmine. Do I follow after the Black Knight or choose 'whatever'.
It's the usual. Follow for content, don't follow for no content.
She's a wsan futa so you should know if it's your kind of content or not by that statement alone.
Trials *technically* has it if you took 5 Galomax, but at the cost of always being a Galotian in addition to whatever you Goo-shaped yourself to look like.
I really really like going Goo in TiTS. Realistically the only thing that's permanent (well I mean you're forever a galotian) is your gooey hair. You can technically still be regular with regular skin and regular cum.
They also introduced a bunch of things as time goes by to help achieve some of the more niche transformations. But yeah, not much targeted beyond horn, tail count, colors, and technically dove feathers.
If you want that, CoCX has it in spades. Metamorph gives you what is essentially a genetic memory and it persists across playthroughs. If you've been something once, you can swap back to it forever. It's done in individual parts; head, arms, legs, tails, genitals, etc etc.
While it'd undoubtedly be a shit ton of work, having experienced that, I wish TiTS worked in that way as well. Right now you mostly only get to set genital type, leg type, and various body sizes. It's not a small amount of stuff.
However, on further consideration I think that'd probably be too much benefit for galotian when the switch is already mighty appealing. But, like stated, I like how it works in CoCX.
they're tumblr writers that are taking a crack at making a glorified collection of porn with combat tacked on.
To be fair, the people that can write "weird" nonstandard stuff either got burned or burned out. Hugs got hugged and William got timeframed and burned out.
I just did a fresh playthrough of TiTS till the end and when I read William's or Fen's latest stuff and they're just as sharp on the pen as they were when TiTS first launched. The relatively newer submissions were also pretty great in that old way. Skom (I'm assuming) made fuckable flora. And it's just pages on pages of rutting uncontrollably in a cycle. It's weird. It's great.
And I came to a realization...
Upon typing what that realization was. Over the course of a few paragraphs I realized that it was going to be exceedingly incendiary even for me. So maybe next time. 
