Realforce 87UB55 (SE18T0)
Stock, black keycaps (PBT)
The Realforce 87UB55 has domes that are uniformly weighted at 55g, and in my opinion, offer the most crisp, tactile Topre experience. The upstroke is extra snappy and makes typing a pleasure, although some claim it be taxing over longer typing sessions.
This is one of two keyboards I’ve sourced via Taobao.