According to Unirank international, the list below shows the 2018 Ranking for Nigeria University
UniRank international aim is to provide a non-academic League Table of the top Nigerian Universities based on valid, unbiased and non-influenceable web metrics provided by independent web intelligence sources rather than data submitted by the Universities themselves.

1. University of Ibadan, Ibadan
2. University of Nigeria, Nsukka
3. University of Lagos, Lagos
4. Ahmadu Bello University, Zaria
5. Obafemi Awolowo University, Ile-Ife
6. University of Ilorin, Ilorin
7. Covenant University, Ota
9. University of Benin, Benin City
10. Federal University of Technology, Akure, Akure
11. Federal University of Technology, Minna, Minna

to see the list of all university use the link below

https://www.imsugreats.com.ng/2018/11/nigeria-university-2018-ranking.html

No 2, my Alma mater