Are there General Circulation Models that can simulate the atmosphere of Venus?
I'm not sure of their current status, but I read some papers based on these models a few years ago:


Oxford Planetary Unified Model System for Venus (OPUS-V), which is based on an old version of the UK Met Office climate model, HadCM3 (paper from 2016).
ROCKE-3D at Nasa GISS, which is based on an old version of the GISS ModelE2‐R climate model (blog article and paper from 2016).


It looks like the introduction of Yamamoto et al (2019) has a more up-to-date summary of the current set of models, and there's quite a healthy selection from groups around the world.