Do you have some?
I personally think Alexa, Google Home and other assistants are garbage.
But I do like the ring door camera. I think it's really useful. If I was building my own home, I'd definitely put one in.
Other than that, wireless lights like LIFX are awesome. I thought it was bullshit but got one and it's so handy to be able to turn it off when you're in another room.
If I was again, building a new home, I'd put USB plugs everywhere, Ethernet would be wired throughout the house. And maybe heated floors too.
Not sure how good Roombas are, but I would probably try one too.