Śūnyatā as Svabhāva

I would like to ask about interpretations of Mādhyamaka (non-Gelugpa) that affirm the possibility of predicating svabhāva of śūnyatā—understood as something self-sufficient, free, and complete. I assume that readings in line with Madhyamaka Shentong may be more open to this perspective, as opposed to Rangtong interpretations. But I would like to learn more about this. Thank you!