Nodes: SamplerCustomNoise, SamplerCustomNoiseDuo, SamplerCustomModelMixtureDuo, SamplerRES_Momentumized, SamplerDPMPP_DualSDE_Momentumized, SamplerCLYB_4M_SDE_Momentumized, SamplerTTM, SamplerLCMCustom This extension provides various custom samplers not offered by the default nodes in ComfyUI.
https://github.com/Clybius/ComfyUI-Extra-Samplers
git clone https://github.com/Clybius/ComfyUI-Extra-Samplers
comfy node install ComfyUI-Extra-Samplers