In general, collaboration with bloggers about advertising will be successful if the process is approached correctly. In order not to be mistaken in the choice, you must answer the following questions for yourself:
1.Does the blogger have sufficient authority with the target audience?
2. Does his ad appear to be fair?
3. Is there an element of setting a blogger against target audience
4. Do his videos resemble explicit product placement?

The decision on cooperation always remains with the advertiser, therefore, before deciding on cooperation, it is better to watch several already published videos of the blogger.
The choice is yours top-100.

Some aspiring Internet entrepreneurs choose a blogger based on the number of subscribers and views. This approach is wrong for two reasons:
Firstly, if the audience is not chosen correctly, the ad will not give the expected response.
Secondly, if a travel blogger calls to buy hand-made jewelry from your store, both his and your reputation will suffer.