I really like to use a Flash for a general bouncelight at the ceiling at large sets. It can be leveled at a constant power that allows you to always fill a bit of the shadows of its metered around 2 stops below your keylight. It wont destroy your mood and gives you the ability to recover some information in the shadows shadows without Pulling too much grain. If the ceiling is not white or extremely high, just use a white ultra bounce in a 8x8 frame. It works best,if the fill light is quite in the Center of the setting (on axis of camera). Happy easter! 🐣💡