About Selecting a Style that best suits the project song. It really is terrific to have such a wide range of choices for the song of our work.
I have no silver bullet but I can offer an approach to aid in the selection steps.

Pre-amble so that you have a context
1) You use the Search filters and/or Song Title to shorten the list from 8,850 to 400
2) You refine some filters to possibly reduce to 200
3) You audition some with the demo
Through these steps you'll find some that make it to your shortlist

Suggested approach
4) Open the shortlist Styles to hear your project song in that Style
5) Repeat #3 & #4 many more times, as necessary

Next Step where I take it next
6) after Opening a number of styles you will have ALL of those on your Recent Styles list
7) Open the Recent Style List viewer
8) along the bottom you can save the list with SaveSet.
I write this StyleSet into the same folder as the Project Song and I will give it a Name also the same as the Project Song
9) there are functions to adjust the items on your list.
10) Notice that there is also a LoadSet button, when you come back to the song you can load this list of selected styles. The help file states that it holds 150 items.
This approach also doesn't crowd your Favourites list with current project ideas.

So you have something close to a playlist. Doesn't solve the selection process but it does allow strong methods for working with that shortlist. When you come back to it maybe your ears will hear the perfect choice.
Hopefully this helps.

Roy happy biab player
Toronto area, Ontario, Canada