Based on this product's specifications, here are some alternatives and similar models
Doorbell Transformer Grothe 14039 — 8V AC / 12V AC, 1.5 A
Summary description:
Grothe 14039 is a doorbell transformer providing two low-voltage AC outputs (8V and 12V) with a maximum current of 1.5 A. Designed for powering doorbells and chimes, it converts mains voltage to usable low-voltage AC for residential or light-commercial installations. Compact and straightforward to install, it ensures stable voltage for reliable doorbell operation.