screenrant.com -BY KARA HEDASH -Billy and Tommy's birth wasn't conventional in WandaVision, but episode 5 suggests that the boys are very much real. Here's the evidence.
screenrant.com -BY NICHOLAS RAYMOND - "The Hex", the name Darcy gave to Wanda's energy forcefield in WandaVision, is a reference to the Scarlet Witch's original powers in Marvel Comics.
www.denofgeek.com -By Kirsten Howard -We've collected together all the major credible theories about Marvel's WandaVision following its fifth episode on Disney+.