Based on this product's specifications, here are some alternatives and similar models
Mobile printer Epson TM-P20II
Summary description:
The Epson TM-P20II is a versatile mobile thermal printer with a maximum resolution of 203 x 203 DPI. It supports both wired and wireless connectivity, featuring a USB Type-C connector. With a compact design, it offers top and front paper loading, accommodating media thickness of 75 µm and a maximum printing width of 5.8 cm. Powered by a 1240 mAh battery, it is ideal for on-the-go printing tasks.