Meike's 25mm F1.8 manual lens for Nikon Z-mount costs only $75: Digital Photography Review
Pergear 25mm F1.8 Manual Focus Prime Fixed Lens for Fujifilm/Sony/ M4/3 Mount Cameras
Andoer 25mm f/1.8 for Fujifilm X Mount Quick Review with Samples - Fuji Rumors
Amazon.com : OM SYSTEM OLYMPUS M.Zuiko Digital 25mm F1.8 Silver For Micro Four Thirds System Camera, Compact Design, Beautiful Bokeh, Bright : Electronics