Based on this product's specifications, here are some alternatives and similar models
Power Adapter SIL 90W HP 77011112 19.5V with 4.5×3.0 mm plug
Summary description:
SIL 90W power adapter for HP model 77011112 supplies 19.5V output and features a 4.5×3.0 mm DC plug. Designed for compatible portable devices, it provides up to 90 watts of power for charging and operation. Suitable for replacing original adapters or keeping as a spare, it ensures stable voltage for reliable device performance and uninterrupted work.