ModularGrid Rack

During the last 11 months I have gradually built my rack as a complement to my Minibrute 2S.
The advice I have got in this forum has been invaluable. Thanks!
Now I will ”close” my rack and fill the remaining 19 HP with some more modules.
I am most into generative ambient stuff and think I have enough of utility modules.
But I need some more sound generating/manipulating sources and it is hard to make a choice.
My present ocillators: Minibrutes two VCO, Plaits, 2hp Pluck and Erica Synths Pico VCO.
One module I am thinking of is a Clouds clone like Monsoon.
Another choice could be som kind of complex oscillator as I like my Plaits very much.
But I am also considering a chord module like Chord v2 from Qu-Bit Electronix.
I would be very glad If I can get some advice how to beef up my ambient patches.