Mikron MIK32 - Made in Russia 32-bit RISC-V MCU offers features similar ...
Mikron MIK32 is said to be suitable for gas/water meters and industrial sensors, healthcare and fitness equipment, remote control and user interfaces, as well as PC peripherals, gaming, and GPS equipment. The MIK32 RISC-V MCU is sold for 450 roubles or about $6, but I'm not sure if it is unit price or in quantities.