MyHome Energenie do two gang switches which can take a slave switch, EnerGenie MIHO090 Energenie MiHome 2-Gang Light Switch White (Master/Slave) - Pack of 2 does not require a neutral and will work as two way and 2 gang, however nearly £40 the pair and you need a hub for internet so looking at around £90, you don't need hub to use remote control but they are £10 each.
Also needs to be swapped as a pair as the S connection must not connect to mains.
In my case also have energenie TRV heads, 13A sockets, and monitors so already had the hub. Also any light switch with no neutral will default off, so with a power cut lights will not come back on without pushing switch, and there is both a lower and upper limit in bulb size, energenie is 5 to 250 watt, some the lower limit is higher, also you must use dimable bulbs even when you not using a dimmer as only that type allow the small amount of current to flow which works the switch.