Here are some popular FPV drone kits available to purchase:

1. DJI Digital FPV System
2. TBS Fusion
3. Fat Shark Dominator HD3
4. Caddx Tarsier
5. Runcam 5
6. Foxeer Legend 3
7. AirBlade UAV Cyclone
8. Eachine Tyro119
9. Holy Stone HS100D
10. DJI Mavic Air 2

Note that this list is not exhaustive and there are many other FPV drone kits available on the market, each with their own unique features and capabilities. Before purchasing a kit, it’s important to research and compare the different options to determine which one is best suited for your needs and budget. Additionally, always follow the manufacturer’s guidelines and safety recommendations when using an FPV drone.