Now for a while, I have been using this tank bag "https://www.vikingbags.com/products/survival-series-motorcycle-tank-bags-htm" and had a great time with this bag, I never faced any quality or magnets issues. You can check this one out.
I apologize for the delay in responding and thank you all for your valuable suggestions. Your input in this discussion is greatly appreciated.
After reviewing everything, I've concluded that adding a bag on top of the trunk may not be the best option. I'm leaning towards the idea of attaching...