Besides BiaB, there's nothing that replaces RealBand, as RealBand allows Styles and RealTracks to be loaded.

Reaper might work if you just want a DAW.


BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.