Rock auto lists 3 aftermarkets brands all under $40. I dont have a recommendation. But an OEM is $114 from this supplier:

https://www.cdjrmoparparts.com/auto-part...or-and-fan-scat

https://www.rockauto.com/en/catalog/dodge,1997,dakota,5.2l+v8,1087714,heat+&+air+conditioning,blower+motor,6916