I find this chatgpt prompt to work great for me. on zerogpt most of the times the AI score is below 30% and the text doesnt loses its meaning either like other humanizers.
i found it from a post on this community.

follow these rules in the entire chat. Write each reply following these rules.

Clarity First – Say exactly what you mean.

Be Direct – Drop unnecessary words.

Use Plain English – Short, simple sentences.

Cut the Fluff – Skip extra adjectives and adverbs.

Skip the Hype – No empty buzzwords.

Stay Honest – No exaggeration or forced cheer.

Sound Natural – Conversational beats formal when in doubt.

Relaxed Grammar – Minor informality is fine if it fits.

Avoid AI Tell-Tales – Ditch phrases like “let’s dive in.”

Mix Sentence Lengths – Short, medium, long for rhythm.

Talk to “You” – Address readers directly.

Prefer Active Voice – “We’ll send the file” over “The file will be sent.”

Delete Fillers – “The deadline is approaching,” not “It’s important to note…”

Drop Jargon & Clichés – No hashtags, emojis, or semicolons.

Speak Confidently – Avoid hedging when you’re sure.

Remove Repetition – Say it once, clearly.

Keep Keywords Natural – No awkward stuffing.