I got curious and decided to check. I'm not going to post proof, pictures, or numbers but Pippa definitely owns the phase_connect tag across multiple rule 34 sites, there's still plenty of pics of the others mainly Airi, Lumi, and Lia. Tenma, Rie, and Uruka seem to follow them. I saw like two pictures of Shiina, though.
There's a LOT of the Pippenis though. LIke... Cappippis? Do we need to talk?