@panzrwagn Thanks for the response. Most of the recommendation you mention has been addressed already. The room has acoustic panels with 2" thick. Both on the first reflection, rear, and behind the speakers. The speakers are 1/4(about 1.5ft) almost 1/3 into the room. The listening position is about 2/3 from the front wall or 1/3 from the rear wall(7 ft from the front wall or 3ft from the back).
I totally agree that the room dimensions is the worse for room nodes but it is the only room in the house that I can use for listening. It is the hardest to correct but not impossible. As I mention earlier in the thread, I have gone through many speakers and mostly does not have this issue. Most of the speakers I tried were front ported except two, the Paradigm Mini Monitors v3 and the Energy Veritas 2.2. The Energy Veritas had a different sound then the mini monitors but were not on a proper stand. I will use my room acoustic software(Smaart not REW) to see my current response.