Dorico is a powerful and intuitive music notation application developed by Steinberg, the makers of Cubase and Nuendo. It is designed with a modern workflow that streamlines the entire process of creating sheet music. It offers an intuitive user interface, powerful editing tools, an advanced scoring engine, and a wide range of options for customizing the look of your scores. With Dorico, you can easily create scores of any complexity, from simple lead sheets to complex orchestral works. It also supports a variety of playback options, allowing you to hear your music in real-time as you work. Dorico is an amazing tool for composers, arrangers, teachers, and anyone who needs to produce professional-looking scores quickly and easily.
It's a free alternative if you can't afford Dorico. It's what I use, in addition to Noteflight.