A kind of (Buddhist) nominalistic philosophy can be found in the Bodhisattvabhūmi and Bodhisattvabhūmiviniścaya (Schmithausen Spirituelle: 166). The key term and concept is that of prajñaptimātra. How about Sautrāntika nominalism (via Frauwallner 1956: 119)? Tsong-kha-pa’s philosophy is said to be closest to nominalism (Jinpa 2002: 175). One of the philosophies of the *Guhyagarbhatantra can certainly be said to be nominalism.