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Is there any other "spells" rites or anything than those in the Player guide? Or eventual?

As we get more supplements out there are plans to add some more. I don't have anything specific yet though.

There are some in the old FS editions' "Priests of the Celestial Suns" sourcebook that you could convert over to FSR.

There's also some "other" Theurgy scattered around the other books in Heretics and Outsiders and Dark Between the Stars that could make a good basis for creating new rites.

I will scavenge and see what I can do.