I plan to purchase a couple for my further sets. What do yall recommend? Thank you

I started using wyze cam v4. Wired cameras, not too expensive ~$30+/-. They do a good job, just need wifi to enable to your phone. No subscription or cloud needed.
That's for residential work obviously. If you're out in the field for k9's or beaver, you'll need a cell cam.

I should have qualified - cell cameras for the field. Thanks

You can put a card in the bink cameras for monitoring purposes.
Bink systems are cheap.
If you need wifi for reporting, ask the homeowner to set up a guest password on their network.
I have phones though my business account that are used as hotspots when wifi is not available.
Comcast/ others have pubic wifi available in many areas for a price.

I have a couple Reveal X 2.0 for a couple years now and have been very pleased with them. They are cellular and cost $5 per camera a month. You can take on demand pictures or motion activated. You can turn pictures into videos clips too. You control them from an app on your phone.