In the world of professional video editing software, there are three main players: Adobe Premiere, Apple Final Cut Pro and Blackmagic Design DaVinci Resolve Studio. All three programs are used to edit Hollywood movies and television series, so none are lacking in features. But despite offering industry-leading color correction tools, a powerful built-in audio studio, and a graphics suite for creating visual effects, DaVinci Resolve Studio is the cheapest option at $295/£306/AU$479 for a perpetual license with lifetime updates.
You can even take advantage of a free copy of DaVinci Resolve Studio when you purchase a Blackmagic Design camera or one of the DaVinci Resolve editing keyboards. The DaVinci Resolve Speed Editor is a specialized video editing keyboard with a jog wheel and Bluetooth connectivity in addition to an internal battery.