Based on this product's specifications, here are some alternatives and similar models
Solder Wire 1 mm 10 g Sn99.3 Cu0.7 5 Spools by 3Dsimo
Summary description:
Solder wire, alloy composition Sn 99.3% and Cu 0.7%, diameter 1 mm, total pack contains five 10 g spools. Designed for manual soldering and repair of electronic components, wires and small mechanical joints. Suitable for use with soldering irons and stations where lead-free tin–copper solder is required for reliable wetting and mechanical strength.