What you're wanting to do is something that's unusual, charge two 2S and two 3S lipos at the same time on one charger, its going to be confusing, especially if you don't have much experience with charging ordinary situations much less something that's unusual, involved and a little more complex than typical lipo charging.

Since you can only parallel charge same cell counts - you can't charge a 2S and a 3S together in parallel, you'll need some kind of dual or multi-port charger. You could charge two 2S lipos in parallel in one port and two 3S lipos in parallel in the other port at the same time. Two 5000mah 2S lipos in parallel is the same as charging a 10,000mah 2S lipo, two 3S 6000mah lipos is same as charging a 12,000mah 3S lipo. A 1C charge rate for a 10,000mah paralleled combo is 10amps, for a 12,000mah paralleled combo 1C charge rate requires 12amps. Either of those Duo type chargers linked has enough output power, the paralleled 6000mah 3S requires ~151watts so 200watts per port is sufficient. The prob is the charge rate which is the usual limiting factor.

If you want to charge at higher than 1C charge rate, you'll want charger with max higher charge rate and more output power . The only one you linked with more than 10amp per port is the B6 Ultimate 800watt. Charging the two 3S lipos presents the largest power demand due to their higher voltage, even with the 800watt (400watts per port) charger you'd only be able to get a 1.7C charge due to the 20amp max charge rate (252watts required).

This would be simpler if you would charge one lipo in one port at a time.....