My go-to is Aqua Gloss from Superior. If you're not familiar, Superior is used by a LOT of professional detailers. Quality products, very good price.
Aqua Gloss is water based (very important to use a water based dressing) and you can slap it on straight for a high gloss shine, or 1:1 diluted for a more satin / flat finish.
Photo of it attached used straight on my clients E92.
