Luminar 4 is a great alternative for editing landscape photos and particularly for exploring your creativity. This informative video will show you how you can use the program to enhance a landscape image.
Coming to you from Jim Nix, this great video shows the process of enhancing a landscape image in Luminar 4. I have been using Luminar 4 for about half a year now, and I really enjoy it. Its AI features are a ton of fun to play with, and I often just cycle through different looks for a bit of invigoration. The great thing is that the AI sky replacement and other features do things that would normally take a lot more intensive work in Photoshop, letting you easily check out different editing ideas that you might not otherwise explore due to the effort involved, but they still leave you plenty of room to take full manual control. As such, it has become a staple plugin that sits inside Lightroom and complements both it and Photoshop. I recommended downloading a trial version and giving it a shot with your own work.
And if you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."