Lots of options. If you already have Hue then I'd get something like this that integrates into Hue (and Hue into homekit) https://smile.amazon.co.uk/gp/product/B08RYT9XGL .
Or there are lots of other options from Sonoff depending exactly what you require. Lots of them sit in the wiring rather than being an actual switch or you can get switches like this https://smile.amazon.co.uk/Switch-Switches-Control-Neutral-Required/dp/B07T6SKFQH
Neutral-Required
You need to be aware of this for most smart switches.
Yep, you definitely need a look at the wiring. I had that in my earlier post and then deleted it for some reason.
Assume the blue in the block is neutral? Any way of testing?
@NotThamesWater started
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Lots of options. If you already have Hue then I'd get something like this that integrates into Hue (and Hue into homekit) https://smile.amazon.co.uk/gp/product/B08RYT9XGL .
Or there are lots of other options from Sonoff depending exactly what you require. Lots of them sit in the wiring rather than being an actual switch or you can get switches like this https://smile.amazon.co.uk/Switch-Switches-Control-Neutral-Required/dp/B07T6SKFQH