You most likely wanna take a look at something that works with Homekit Secure Video and Homekit in General if your an iOS user as this will pull it into the Home app which is very friendly.

As well it can do things like facial recognition.

I have some devices that don’t natively support homekit but have a homebridge server to solve this.

I’ve had Comcast (Xfinity) home security for about a decade now. The reason I chose that was because I worked there at the time so obviously got a big discount on the service, but I have kept it even after moving to a different company. It’s fully accessible, including the android powered touchscreen. There’s a dedicated gesture to activate talkback, and the online portal and iOS app are also fully accessible.
As for the actual security features, since it’s all I’ve had, I don’t know if it’s the best or most advanced thing out there, but it’s reliable and works for us. It also comes with cellular backup in case your Wi-Fi goes down, so that makes me feel an added sense of security. Something to consider, at least

We have Brinks. Our home came with a touchscreen IqPanel installed which I'm fully unable to use, but the system also came with tactile keyfobs which are perfect for arming, disarming, and activating panic mode if needed. The Alarm.com and Brinks iOS apps are fully accessible with VoiceOver, and you can set up Siri shortcuts and phrases so she can control the system. The Brinks Home app also loads as a widget in the Today view when swiping right on the homescreen which offers editable arming and disarming modes. I definitely recommend them, and also recommend buying a few other security system yard flags for your property from other services like ADT or Simply Safe. When you have multiple flags around parts of your home, potential burglars will get confused if they have specific ways of jamming specific brands of systems.

If Brinks isn't an option, ADT and SimplySafe are also decent, though the latter requires you to install the whole system yourself. It's all wireless, but you just have to stick the door, window, glass break, and motion sensors yourself which can be an issue.

A friend uses the Echo devices for security. When she leaves her home she activates a skill and she says it works for her.