When I stopped by the library, I came across a book of songs... But as a friend pointed out, they can be rather lengthy-- especially in a time of crisis. But, perhaps using the kotodama-- the spirit of the word-- would allow the shinki to channel the essence of the song into but a few syllables, enabling them to use the spell in a timely manner.

Ah, but even then, it might take practice, and many shinki are new here. Some do not even know how to draw boundary. So, then I thought of something else--

[ She takes a breath. ] Besides equipping them with more knowledge and practice eon how to use songs and draw boundaries, I was thinking of designing a sort of ward. Ofuda and omamori are already used as devices for protection, and some can even be designed to prevent possession by spirits or deflect curses. If something like that can be augmented to deflect an untoward naming, it would help those who are not strong enough to create a barrier on their own just yet.

Lastly... shimenawa. In my world, it has the power of binding a god's power. [ And sometimes gods willingly adorn it before walking upon the earth. ] That may not be the case here, but it's not an uncommon belief among humans that it has such properties. [ And since belief fuels their power-- ] If we can tap into that belief, we can infuse it into some shimenawa to give a shinki an extra means to stop a god from abusing their power.

[ There's one last pause before she continues, a hesitant look on her face. ] That being said, I haven't really started on any of this yet. I'm not sure if some of these things will work, but I'm willing to try.