Below is a small book that proves only from the Qur’an that Prophet Issa (peace be upon him) did not die and he will most definitely return.
Below is a small book that proves from the Ahadith (sayings of the Prophet) that Prophet Issa (peace be upon him) will definitely return and that these Ahadith are not metaphorical.
Is Dajjal a metaphor?
Below are a few articles that relate to Prophet Issa (peace be upon him), the third one deals with the ‘no virgin birth’ theory of Lady Maryam (May peace be upon her):
May Allah guide us all to the truth and keep us steadfast on it. Aameen.