Is there any tradition in shia literature about third temple being built in place of Aa Aqsa mosque or greater Israel? I coudnt find except for some Christian and unreliable sources

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We don’t have such traditions but in surah Al-Israa there is reference to the appearance and presence of Jewish concentration around the Aqsa Mosque.

Holy Quran 17:104
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وَقُلْنَا مِن بَعْدِهِ لِبَنِي إِسْرَائِيلَ اسْكُنُوا الْأَرْضَ فَإِذَا جَاءَ وَعْدُ الْآخِرَةِ جِئْنَا بِكُمْ لَفِيفًا

And We said after Pharaoh to the Children of Israel, "Dwell in the land, and when there comes the promise of the Hereafter, We will bring you forth in [one] gathering."