Dirt-cheap, 16 channels (8x stereo), no non-sense in a compact rack format: Behringer RX1602 V2
You can also have an FX chain by plugging the FX send into your effects and route them back into one input.
I don’t like the small knobs and the fact that you don’t have a lot of room to adjust the volume because the pots are stepped but that’s about it.