Does an Oedipus the King manga actually exist? In episode 2 of Terror in Resonance, Lisa is shown reading a manga that depicts the events of Oedipus the King. Does such a manga actually exist?

A preliminary search in English didn't give anything useful, and it's pretty likely that this manga might have been invented for the sake of the anime, tying into the other allusions to the work (which seem to be relevant to the plot, but since I'm only on the second episode, I can't tell yet).

But since I enjoyed the play, I'd like to ask just in case there is such a manga, and if my searches just didn't work out.
I don't know if you're asking this question without the knowledge that Oedipus is originally  from a Greek mythology or not. He is a tragic hero and a king in Thebes and his name translates to the Ancient Greek "Swollen Foot". Here's the wiki for that.

To answer your question: No, I don't think a manga version of Oedipus the King exists. Although there may be an English comic about it somewhere. The reference in Zankyou no Terror was most likely for plot rather than an actual cameo.

As a disclaimer, I haven't finished it either and stopped at episode 9 or 10. Also, this is my first shot an answering a question here @stack-sites, I hope I did good :)