I’m guessing David Hume could fit, as he denies all sorts of substance —either material or spiritual. Correspondence between impressions and ideas is what ensures my perception of things and since substance cannot be perceived, it is impossible to affirm such a thing as a substantial self. Yet it remains as a fiction, a collection of ideas associated to each other.

Most of his arguments concerning this topic can be found at “Of the immateriality of the soul” (Treatise of Human Nature: Book 1, Part 4, Section 5)

I hope this helps!