Maybe this one ? Or this one ? Also this. And this one ?

I have a transparent one from ESR on my new mini 6, it fits all your criterias except color. It fits the device very well, is a tight fit, agréable to the touch and as I don’t have a pencil I didn’t want anything pencil related. It’s perfect but it’s transparent which you might not like, however, I find it really cool to still be able to see the (beautiful in my eyes) pink color of my mini :)