You can use a portable ram to break down doors.

You gain ADV on breaking doors.

One other creature can help you use the ram, giving you gain another stack of ADV.

A robust wooden beam, fortified with iron bands, culminates in a weighty metal head. The head's broad, flat striking surface aligns seamlessly with the beam's horizontal axis. Affixed to the beam are two iron handles, each adorned with leather-wrapped grips—one near the head, and the other strategically positioned toward the opposite end. This formidable arrangement offers a versatile and powerful tool for the intrepid adventurer.