Definitely TBS crossfire or Tracer. The challenge with the current DJI FPV radio is that it costs $400 but it's not worth anywhere near that. There are many excellent radios for half that with crossfire like others have mentioned. The Radiomaster is my daily driver these days and it's great. I also have the Tango 2 for when I'm packing light, but I prefer the ergos of the Radiomaster. The DJI radio is bulky, heavy and lacks a screen and the flexibility offered by an OpenTX alternative. Despite these concerns, the main issue with the DJI radio is the range. Don't get me wrong, the range is great. That's not the issue. The problem for me is that the video link and the control llink have the same range. In open spaces, you can expect 4-6kms but in areas with multi-pathing or high interference, you may start to drop video quality much closer and the control link also can fail at the same time. It's never a good thing to failsafe, especially when your video link starts to drop.
Going with TBS crossfire ensures your control link will always out run your video link, It becomes nearly impossible to failsafe and when your video quality drops, you always remain in control. My 2cents...