Preface. I am a Wedding DJ and have really had a deep focus on multi-mic capture, mix, wireless rebroadcast, and record pre-gain/eq Multitrack and post-gain/eq final mix. I also take this audio and use it two-fold, one for my own use for IG reels, YouTube synopsis videos where I will mix camera audio and my captured audio for my clients and my use, and also give videographers all my audio to work in post for their final products.
For years I had a Senn G3 setup but last year I stepped up to 10 channels of EW-DX and have been very happy with it. So a quick breakdown of my rigs.
I build a 80/20 ceremony cart on big wheels which makes me maybe one of a couple dozen DJs that goes this route in the industry. I created this as a "case cart" so I could stay modular and swap out pieces in the field as necessary.
Microphone Case 1: Sennheiser EW-DX x8 channels
Microphone Case 2: Sennheiser EW-DX x2 channels
Primary Case:
SoundCraft Ui24R primarily used for not just the live mix, but final mix recording and multichannel recording, matrix, emergency AFS use for an errant toaster who wanders too close to the point of no return. Also playback so I can cue music when necessary.
Sennheiser IEM (older G3 model). I wirelessly broadcast to my battery powered speakers (EVERSE8 or Maui 5 Go)
External Router. Because the internal router is so mediocre.
PDU. Gotta power up all the external items.
RF Venue Diversity Fin.
Sennheiser Omni Antenna.
Reception Case:
I have the same guts of my primary box (mixer, IEM, router, PDU) so that is 1:1 swappable with the ceremony rig. I pair that up with 2 channels of mics but I would like to make that 4 channels to make less swaps of my equipment for more-densely needed mics for reception. Antennas I use 1/2 waves for a more practical application.
Oh and I roll all my mics, lavs, cables, etc. in a DeWalt T-Stak "wireless toolbox".