Fortunately, AMD compiled a list of all currently available CPU coolers that support Threadripper. Most of these are all-in-one watercooling solutions.
Coolers with AMD Ryzen Threadripper support:
Arctic:
- Freezer 33
- Liquid Freezer 240
- Liquid Freezer 360
Cooler Master:
- Hyper 212 TR Edition
- MasterLiquid 240
Corsair:
- Hydro Series H80i v2
- Hydro Series H105
- Hydro Series H100i v2
- Hydro Series H115i
Cryorig:
- A40
- A40 Ultimate
- A80
EVGA:
- CLC 280
NZXT:
- Kraken X52
- Kraken X61
- Kraken X62
Thermaltake:
- Water 3.0 Riing RGB 360
- Water 3.0 Riing RGB 280
- Water 3.0 Riing RGB 240
- Water 3.0 Ultimate
- Water 3.0 Extreme