A god with attributes; each attribute is one way and not another
Numbers and forms; their consistency needs a proof in a stronger system, or is a brute fact; a structure settles no laws
Tegmark's mathematical universe; mathematics has properties, so it is inside E
The quantum vacuum; fields with energy and symmetries; calling that state "nothing" is word play
The multiverse; a rule for which worlds happen is a property
Emergence; it starts from parts, relations and laws, exactly what needs the ground
A necessary being; right that the chain ends, wrong to give the end a character (Gödel's ontological proof too)
Every candidate is inside E, or carries features that put it inside