I use several brand of security cameras - all connected within my Amazon alexa app, and view them mostly continuously on an Amazon fire tv.
You could also view the cameras from an Amazon alexa device (spot or show). And if you want a larger picture, I'd suggest an Amazon show 15. I use a show 15 to have "family chats" and to just keep watching what's happening back at home - and it makes a great traditional digital photo frame.