Here is a Dua that we can ask o welcome Ramadan. Consider that the sahabah (Prophet’s companions) and the salaf would be so eager to have their Ibadah accepted that they would pray for up to 6 months after the completion of Ramadan asking Allah to accept their fasts and worships.
Make this Dua to Allah to grant us the days and nights of Ramadan.

Not losing hope in the Dua’s that we make – Dua Acceptance
Books on Dua and Quran



Ameen. May Almighty Allah us the mercy to witness and observe this year ramadhan and many more.