Based on this product's specifications, here are some alternatives and similar models
Battery 2-Power VGP-BPS26
Summary description:
The 2-Power 11.1v, 6 cell, 57Wh Laptop Battery is designed to replace VGP-BPS26. It features a reliable 57Wh capacity and 6 cells for extended usage. This battery ensures optimal performance and longevity for your laptop, making it an essential accessory for users who need dependable power on the go.