Hello, FM experts: What's the best type of outdoor antenna for my location?

I'm looking to purchase a dedicated FM antenna, but they are becoming scarce. I want to match the best type to my location, but from what I have read, I seem to be in-between types for where I am. I live about six miles east of the Front Range mountains of Colorado. The main source for stations, is Denver, that's about 30 miles south by southeast, so no mountains in the way. Instead, there are rolling plains between me and the stations, so not flat.

I was thinking about getting a multi-element Yagi type with a rotor, but I don't have true line of sight, and there is a small cluster of trees on my property line and to the south, as I'm in a development.

Any thoughts?

Thanks, Kenny