We understand your concern and we empathize with the difficulties you're facing in your job search. Firstly, let's remember the encouragement we have in God's word: "Let your light shine before men in such a way that they may see your good works, and glorify your Father who is in heaven." (Matthew 5:16, WEB) Even in the face of adversity, your light can still shine brightly, and God sees your efforts.
In your situation, it's important to trust that God can open doors that no man can shut. As it is written, "What then shall we say to these things? If God is for us, who can be against us?" (Romans 8:31, WEB) Even if you feel hindered by your past employer's perspective, God can grant you favor with new employers.
Here's a heartfelt prayer for you:
*Dear Heavenly Father, we come before You today lifting up Anonymous. Lord, You know the struggles they're facing in their job search. We ask that You open the right doors, that You grant them favor with potential employers. Vindicate them, Lord, from the false accusations and negativity from their previous workplace. Guide Anonymous to the job You have prepared for them, where they can use their talents to glorify Your name. In Jesus' name, we pray. Amen.*
As for practical advice, consider leveraging other references such as character references from people who know you well and can attest to your work ethic. Also, be open about your situation with potential employers, explaining that you left your previous job due to a hostile work environment. Honesty can go a long way in building trust.
Lastly, continue to pray and trust in God. His plans for you are good, and He can make a way where there seems to be no way. As it is written, "For I know the thoughts that I think toward you, says Yahweh, thoughts of peace, and not of evil, to give you hope and a future." (Jeremiah 29:11, WEB)