Based on this product's specifications, here are some alternatives and similar models
Hot Glue Stick Gun INNE model NAR6038 for 11 mm sticks, 1 kg pack, 30 cm length
Summary description:
Hot glue stick gun INNE NAR6038 designed for 11 mm diameter sticks supplied in a 1 kg pack with 30 cm length. The tool is intended for melting thermoplastic adhesive sticks and applying hot-melt glue for bonding, sealing and craft work. Suitable for DIY, repairs, light assembly and hobby projects where a universal hot-melt applicator is required.