Welcome to Openhab and the forum!
By posting in a thread about baby monitors you probably wont get input from other people, this is why it is best to open a new thread of your own so more people see it and contribute…
Sorry I have only used a single model from two brands so have very little experience with different camera hardware, I suggest you read the countless threads of people asking that question here.
I suggest that you stick to a brand that has an open API which is listed in the very first post of the ip camera binding thread and read what features from each brand is currently implemented as I keep that post up to date.
Before choosing you really need to consider the location that you are installing it in and why you want the camera. Is night vision important? Does it have streetlights that make starlight cameras worth while? Or is that feature less usefull as it is pitch black at night.
You will learn about placement of cameras and how a 2mp camera at night can give a better picture due to the pixel VS sensor area ratio. If your goal is to ID people at 6m+ from the camera then a high res camera will be needed.
h265 is great to have especially with high res cameras to keep the storage space needed lower, however if you want to cast the cameras to a non 4k Chromecast, then you will need to turn both off and use 1080p resolution on at least 1 of the substreams. Read the cameras manual carefully as often to get access to mjpeg or 3 streams you need to sacrifice certain features as the current range of cameras are limited and you often have to choose what is more important.