There are different stories/assumptions about Dajjal's current location. What is the correct answer?

We do not know the location of Dajjal at this point of time. We just know that he will appear in the area of Khurasan and he will engage and rally people around himself. We know that in the time of Prophet (ﷺ), a companion had visited an island with some other companions and they had come across a chained person. When the Prophet (ﷺ) was informed about this, he confirmed that he was Dajjal. One may ask where that island is. Allah knows best. The speculation about the location and how could he be living from that time until today – all this knowledge is with Allah alone. It was not informed to Prophet (ﷺ) and for this reason he didn’t inform us about it. We just have to accept as it is because there is no evidence concerning his current location.