Klein 9B Distilled (edit or original t2i, worth getting both for learning in general), For the workflow, simply search for “Klein” in the ComfyUI template/community section. To load the model, use the GGUF version — it’s much lighter on VRAM. There’s currently only the BigLove Klein variant available. You can find the files by searching for user Granddyser on Hugging Face.
Also, the quantized Gemma 4 E4B models, when used through a custom LLM node, are extremely lightweight and responsive — especially the abliterated variants. They integrate smoothly into your generation flow, allowing you to run a preprocessing step to refine or generate prompts on the fly if you like that workflow.
Unfortunately, you’ll mostly need to go to Civitai for LoRAs, as Hugging Face archives for these specific models exist but the site has poor search functionality. Civitai can be a bit of a wildwest full of ego-driven posts, but the quality and compatibility of Klein LoRAs vary. That said, if you’re using the BigLove variant, you’ll already have a lot of flexibility even without LoRAs. When you do use them, you usually won’t need more than one or two.
For reference I use a RTX 3090.