&You say there is another panel with just mains. Is that connected to a meter? Specifically I want to rule out that this is a 120V/208V sub-panel fed from a three~phase service as can happen in multi-unit housing. The approach would be a different if that’s the case.
Assuming it’s 120V/240V (or possibly 110V/220V as i see 220 written in the box), then treating it like a standard North American split-phase;
USB power supply
2 200A mains CTs
1 100A CT for furnace
11 50A CTs
There more circuits than CTs, so I’d recommend using one each for the
Then use the remaining 7 for other individual circuits. You can combine the two kitchen circuits by passing both through a single CT. They are on the same phase.
You will be able to define an output that is the aggregate of the unmonitored circuits. I would suggest not monitoring the disposal and washer. They don’t typically add up to very much at all. That leaves seven other circuits for which you will have 50A CTs.