hello, I am using tapo brand cctv. so far, no issue if you pay monthly cloud service you can even playback the images etc.
I use xiaomi c400. cheap and good. can view from phone also. https://s.shopee.sg/2fu1q7sOo4
hope this helps https://sg.theasianparent.com/top-baby-monitor-brands-singapore
Tapo So far so good
Tapos c225