Intermediate ski boots are a great match for your current level. They feature a medium flex rating (80-100), which gives you a nice balance of comfort and responsiveness. You'll get enough stiffness to feel connected to your skis and transfer power effectively, but they won't fight you or cause fatigue like a stiffer advanced boot might.
These boots are designed for developing skiers who get out 5 to 20 days per year and ski mostly groomed terrain. The fit is performance-oriented but still forgiving enough for all-day comfort. You'll notice better control than a beginner boot, especially when carving turns or picking up speed on steeper runs.
If you're still mostly on greens or just starting out, a beginner boot's softer flex will be more forgiving. But if you're confidently linking turns on blues and pushing into more challenging terrain, intermediate boots will support your progression without holding you back.