All good suggestions above.
Takes work and effort to get a system dialed in, but the results are worth it!
After all the hard work get the best sound by sitting in the sweet spot, not wearing glasses, and keeping eyes closed!
I would like to remind you that there is no EASY answer to this question and Much of any answer must include the design of the speaker. Your speakers design is a Major factor in what treatment is needed in your room. I was just discussing with a friend last evening how my own favorite design has the woofers up off of the floor quite a distance so that the emissions from the bottom of the speaker are not absorbed or reflected by the Floor/carpet. This would be opposed to manufacturers that put the woofer as close to the floor as possible for their own reasons. I am not discussing the validity of where speaker components as place but how it effects the reflective nature of the resultant sound.
@thomastrouble you started several posts with the same or overlapping questions within 36 hours and then you randomly follow up and respond to some suggestions. It’s not the first time I see this, but to me it seems counterproductive and redundant to say the least, I am confused about your intentions and how much value you will gain this way from all these well intentioned responses. It’s like a moving target.