There is no Gemara on most of Seder Taharot apart from Maseches Niddah. There are commentaries on the Mishnayos there from Rambam and the Rash as well as the Rosh, Maharam of Rottenburg and Hai Gaon. These are all Rishonim, whose comments are both important and sometimes hard to understand. Apart from hagahos, I can't find any large commentaries printed on Taharot in the back of the Gemara.
Are there any commentaries specifically on Seder Taharot from (preferably early) Acharonim that aren't just commentaries on all of Mishnayos? I understand you also have Bartenura, Gra and Tosfos Yom Tov there, and there are also modern authors like the Chazon Ish. I'm thinking of something like a Maharsha-equivalent.