Based on this product's specifications, here are some alternatives and similar models
AC Adapter Dell XPS 18 1810 19.5V 3.34A 65W
Summary description:
AC adapter for Dell XPS 18 1810 providing 19.5V at 3.34A (65W) output. Designed to replace or supplement the original power supply for charging and powering the device. Compact external adapter with compatible voltage and amperage to ensure stable operation and safe charging. Suitable for home, office use or travel when a reliable OEM-compatible power source is needed.