Based on this product's specifications, here are some alternatives and similar models
Single-use alkaline battery everActive EVLR20-PRO D 1.5V, 2 pcs
Summary description:
Single-use everActive EVLR20-PRO D alkaline batteries (2 pcs) with 1.5 V nominal voltage and D size. Alkaline chemistry provides long shelf life (up to 10 years) and reliable power for torches, radios, toys, and household devices. Supplied as a twin pack for quick replacement and uncomplicated use in devices requiring D cells.