Based on this product's specifications, here are some alternatives and similar models
Toner PRINTE TB3380N black for Brother HL-5440D/5450DN/5470DW/6180DW, yield 8000 pages
Summary description:
Replacement black toner cartridge PRINTE TB3380N, compatible with Brother models HL-5440D, HL-5450DN, HL-5470DW and HL-6180DW. Designed for monochrome laser printing with an estimated yield of 8,000 pages. Provides standard black printing for office documents, invoices and reports; suitable for high-volume desktop laser printers requiring a direct-fit compatible cartridge.