The verses about Imam Mahdi (as) speak about a variety of topics including his friends, companions, enemies and information about his (as) Ghaybat. You can view some of these verses below
Shiahs of Imam Ali (as)
Imam Mahdi (as) in Ghaybat
Imam Mahdi (as) and the Night of Decree
Wilayat of Imam Ali (as)
Companions of Imam Mahdi (as)
Ghaybat of Imam Mahdi (as)
Reappearance of Imam Mahdi (as)
Who are the Imams (as)?
Discussion About Sufyani
Discussion About Bani Umayyah
The “Two” Oppressors
Enemies of Imam Mahdi (as)