For me, the best is still GPT 4 with AIPRM.
The majority of services are just crap that give you a prompt like:
Write a text about [topic].
Make sure to focus on [key points].
Write it in a [X tone]
3 fields that are automatically filled in by what you write.
Congrats, you've paid €1 for your shit, which will be detected by AI at a minimum of 60%.
If, on top of that, you use a tool to rewrite your text and make it "more human", there's a good chance that it will destroy your keyword(s).
The best solution is to use chat GPT 4 with AIPRM and/or a customised prompt to fine-tune your text.