1 Set Black With Red Russian Legends Custom Keycap Set For Mechanical Keyboard | eBay
EnjoyPBT Orange Russian Language 117 Key Keycap Set (EnjoyPBT)
Retro Russian Keycaps – Yong Qiu
123 Key Russian Keycaps Pbt Sublimation Mechanical Keyboard Key Cap Cherry Profile For Gh60 Xd60 Xd84 Cospad Tada 68 87 104 - Keyboards - AliExpress
For those looking for stylish Cyrillic key caps, $35 alphanumerics in different colour options (select the alphanumeric kit and colour in the drop down) : r/russian