This list^[1] looks good, although it is not up to date, so you can take a tour of the campaign managers out there and write to them.
I have read your previous posts. It seems that your project is worth looking at. I did not dive into the depths, but I bookmark your page and will come back to read it again later.
How long do you want to run a signature campaign? If it was for a long time, I hope to hire @LoyceV, he is an excellent member, and I did not see him running a campaign soon, so he will give you good results.

[1] https://bitcointalk.org/index.php?topic=4412712.0