Recommended budget GPU for LLM experimentation

[msfasha]

I want to get a budget GPU for LLM training/fine tuning/experimentation.
I am considering:

a single rtx 4070 ti super 16gb
or a single rtx 4080 16gb
or some dual lower level gpus setting, e.g. dual rtx 4070 12gb ram

Any thoughts, advices or other recommendations?

[sorasoras]

For finetune, I think 24G isminimum so a 3090