AudioQuest Storm series.
DHLabs Corona
I would start with the amplifier power cord.
I feel the need to comment about the tonality. The amp power cord can effect the tonality a lot. I have in the past wanted better imaging and detail… and went after that directly. Only to regret it later. For me the phrase: “Be careful what you wish for” has been particularly salient.
Getting details and imaging in space is the mark of a great system, no question. You can achieve this by having a lean midrange and bass, with emphasis on the treble. Lean components and silver wire will do this relatively easily. If achieved this way you loose the emotional connection. This can sound good at first by commanding your attention to the detail… maybe slam if you are using a good high powered amp. But your mind will start to wonder and you’ll get bored quickly.
At least for me, I find concentrating on the overall tonal balance and how fleshed out your midrange and bass are is critical to overall performance… then other attributes. This is why trying out wires for an extended time to make sure it does all the right thing is important. CableCo has a lending library… dealers should do the same.
I saw elsewhere you had a question on Some tube equipment. Tube stuff usually has pretty good midrange. But if not careful you can loose it.
Maybe this is not relevant to your system.
It would be great to see your system and venue. We could then offer better advice. There is a place to put photos and ID your components under your UserID. It does not need to have showpiece photos.