Assuming you are going with a professional photographer, I would find some whose vibe you like, as these look like there’s a lot of editing after the fact. Send a few your inspo photos and see if they can show you photos with a similar location. We have gotten annual professional family photos for the past few years and our photographer always knows the most photographic couple of square feet in some random park that you wouldn’t have thought twice about if you went on your own. Last year was Winfrey Point at white rock lake and it fits your description minus the fence.