Unfortunately that’s not very helpful. If I had more time I would. But for years I used Premiere and I could quite easily list a number of filter combinations that would work well in different scenarios.
Here’s an example of something I’ve recently been using in FCP for a ‘dreamy’ effect. Bloom + Light Rays + Vignette. Adjust Bloom and Light Rays for personal taste mainly using brightness and threshold settings, but I suggest you set ‘darken’ to 0 for Vignette and mix it to approx 50%.
This is the sort of thing I’m hoping someone can share with me.