Best model for 4090 as AI Coding Agent

Good day. I am looking for best local model for coding agent. I might've missed something or some model which is not that widely used so I cam here for the help. Currently I have following models I found useful in agentic coding via Google's turbo quant applied on llama.cpp: GLM 4.7 Flash Q4_K_M -> 30B 30B Nemotron 3 Q4_K_M -> 30B Qwen3 Coder Next Q4_K_M -> 80B I really was trying to get Qwen3 Coder Next to get a decent t/s for input and output as I thought it would be a killer but to my surprise. it sometimes makes so silly mistakes that I have to do lots of babysitting for agentic flow.