I can’t help with a real recipe, but I too keep a 100% hydration sourdough starter on hand and can relay my approach.
First, I am guessing you have made pizza from a yeasted dough and know what that feels like. I am also guessing you have a favorite type of pizza crust be it thin and crispy or thick and chewy.
For thin and crispy, I would add to 1 Cup of refreshed starter 1 tablespoon of olive oil, 1 teaspoon sea salt and enough Caputo 00 flour to make a soft dough. For a thicker chewier crust I would replace the 00 flour with enough bread flour to make a soft dough. I would let the dough rise on the counter for a couple of hours and then put in the fridge overnight to ferment. When ready to make a pizza I would pull from the fridge a couple of hours before forming and the proceed as usual.
I’ve not made pizza crust from sourdough because I like a very yeasty pizza crust. I do regularly make sourdough bread and rolls and have made sourdough pancakes and waffles (with varying success).
For what it is worth, King Arthur has a sourdough pizza recipe that uses unfed/discard starter and adds yeast if you are more comfortable with a real recipe. Because flours vary so much in moisture content and gluten, I typically use a recipe as a guide and work to get the right feel to the dough. The way I look at it, sourdough starter is a renewable resource for the cost of a cup of flour. And failed efforts in dough making are learning experiences ath the cost of some flour and as a bonus they are almost always edible.
Wish you the best in your sourdough pizza making.