I made small research about the gallaries & I got some interesting locations :
1. in @Jabal AL Weibdeh - Darat al Funun - in The Khalid Shoman Foundation,
2. in Jabal AL Weibdeh - @Dar al Anda
3. in Sweifieh - Salah Toukan Street - Broadway Gallery
4. in hotels: @Intercontinental Hotel - The Gallery & Grand Hayatt Amman @Zara Gallery
5. in Abdali:
@Art Matters
if u want I can provide u with the #s