find youtube influencer who have more than 10k subscribers to promote my channel

My cousin and I have cooperated to build a sand painting website, we have a channel on youtube, I hope to find some youtube influencers to help us promote our sand painting videos, so that more people will pay attention to our channel.

Here is our channel address:
https://www.youtube.com/@sandartgift/videos

Requirements for this contract:

1. You have your own youtube channel with more than 10k subscribers
2. Your youtube channel has uploaded new videos in the last 3 months
3, I will send you some of my sand painting videos, you use these materials to make a review video and put it on your youtube channel
4. If the number of subscribers on your channel exceeds 100k（I will give you more money.）, I will make a sand painting video for you for free. (The video can be a sand painting photo of you and your partner, or your love story. The specific demo can refer to here):

https://sandartgift.com/product/product3/
https://sandartgift.com/product/product1/

Then you can use the sand painting video I made for you to make a video.

about cover letter:
1,Please write your youtube channel in your cover letter. (Please write your own channel, not others)
2,please include "sand art" in the title,ao I know you read my post carefully.
3,What would you do if you made a review video to promote my sand painting service? write down your thoughts