New to fpv

So I have an analog setup. I have the EV800D analog goggles and a micro runcam aio i stick on my fixed wing tundra. I get decent signal flying around about a football sized area. Some signal interference close to trees but works fine. My question is I want to put a cam on my 70mm f16 and I want more range. I use spektrum equipment and im not knowledgeable on FC amd such. So the aio runcam worked for me as an easy plug and play. Are there any good aio cams similar to this setup you all would recommend? Maybe 500mw range? The runcam currently pushes 200mw. Any help is appreciated.