Ok. First off, sweet tank & fish!Here's a link to one of my older threads with some pictures of the tank, I no longer have the wild Oscars had to get rid of them
https://www.monsterfishkeepers.com/forums/threads/my-330-is-finally-up-and-stocked.671129/
I have or have had similar stock on last year (Chocolate, Rotkiel, G. Tapajos, G. Winemilleri). You should certainly add live plants if you haven't done so already.
My Rotkiels have always ignored plants (I hear some Sevs eat plants), and my Geos never uprooted them (I have sand substrate, but I protect the roots of my swords by placing small 1cm - 2cm stones around the base).
I think angels would do fine with your Rotties.