Just bought a house that has natural gas and wonder if there are any plug/battery detectors people recommend?

Also where should I put them? Bedroom/kitchen/attic?

Any info would be greatly appreciated for this first time home owner

I have the stupidly expensive Nest Protect CO/Smoke detectors. Really like that they automatically test themselves regularly and will send you a push notification if something goes off as well as ringing.

https://amzn.to/3yMQQkT

Natural Gas rises, so if you want a NG detector, I would just put it in the attic on the side of the house that it is used.

Bought these a couple days ago for in laws house bc they been having some issues. I don't know anything about these but it's got good reviews and a reputable brand.

https://a.co/d/3ruCzgP