If you're seeking a dua for freedom from oppression, consider reciting the following supplication:
"اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الظُّلْمِ وَالضَّلَالِ وَالسُّءِ وَالشَّمَاتَةِ وَالبُرِيَّةِ وَأَعُوذُ بِكَ مِنْ غَلَبَةِ الدِّينِ وَقَهْرِ الرِّجَالِ"
Transliteration: "Allahumma inni a'udhu bika mina al-zulmi wal-dalalati wa al-su'i wa al-shamatati wa al-buriyyati wa a'udhu bika min ghalaabat al-deeni wa qahr al-rijaal."
Translation: "O Allah, I seek refuge in You from wrongdoing, misguidance, ill-intention, arrogance, and from being humiliated. I seek refuge in You from the oppression of the domination of others and from the tyranny of men."
Recite this dua sincerely, with a focused heart, and trust in Allah's wisdom and mercy. Additionally, strive for justice and take necessary actions to address oppression in a peaceful and constructive manner.
