Based on this product's specifications, here are some alternatives and similar models
Modelling clay FIMO professional 57 g — FIMO chocolate (8040-77)
Summary description:
FIMO professional modelling clay, 57 g in chocolate color (mpn 8040-77). Ready-to-use polymer clay for modelling detailed miniatures, jewellery, decorations and repairs. Oven-bake material provides durable, sandable and paintable finish after curing. Suitable for hobbyists and professional crafters who need consistent texture and colour.