Hi, I am fairly new to eurorack, and I am seeking advice for my system. In addition to what you see, I also have Moog semi-modulars: DFAM, Labyrinth and Subharmonicon.
My eurorack system:
https://modulargrid.net/e/racks/view/3065487

The aim for my modules, is primarily to bring life to my Moogs, but off course I know my modules eventually will take over.
My purpose is to make groovy techno jams (dawless) in the safety of my own home, while keeping the dream alive for a live performance in the distant future.
I am aware that I have no VCOs in my rack, and that is something I will look into in the future, but for now, I need advice on two things specifically:
- Effect modules
- Mixer

For effect modules, I am considering:
* Erica Dual FX
* Happy Nerding FX aid XL.
Also Erica DSP2 could be something.

For mixer, I find it hard to navigate all the information. As of today, all I do is mono, but I would like to jump into stereo territory. I use the Doepfer a-138-j now, and takes the mix out to an external Boss KM-600, mainly for recording purposes (minidisc for the win!).
With the 138-j, I have too few channels, unless I merge drum sounds on my VCAs. Is that how people usually do?
Basically, the voices I use would require 6 channels: 3 x moog + 3 drums (bd 808 and hats 808, open and closed).

I am also grateful for any other feedback on my system, such as obvious functions I am missing.
Other modules I am considering, is ALM PIP, XAOC Lublin and Make Noise Maths. Am I on the right track?

Regarding the mixer, I don't know if this is the direction you want to go, but instead of Eurorack mixers I got a Tascam Model 12 digital mixer. It has 12 channels and can handle Eurorack output voltage levels. You can also record on it and use it as a 12 channel usb audio interface.

EDITED Yesterday, 16:22

Like @PragmaticusMax says having an outboard mixer is a good idea and you can pick up second hand or new mixers pretty cheap online, though its also good to place sub-mixers around your modular to bring some of the parts together. So adding a Matrix Mixer is good as a way to swap and change singal routing before hitting the effects, then post-effects grab a stereo mixer (having the ability to Pan your signals is nice), then the Befaco Output Buss is great to bring all the signals together whether you got for an expernal mixer or not.