This is the best I've tried so far, but no mac support I don't think. Its a feature packed fork of Fooocus, which was developed by the orginal ControlNet dev. The quality you can get from small prompts is mind boggling:

https://github.com/MoonRide303/Fooocus-MRE

For base SD 1.5, I use Volta, because its fast: https://github.com/VoltaML/voltaML-fast-stable-diffusion/com...

Really good SD 1.5 image quality comes from gratuitous use of finetunes, LORAs, controlnet and other augmentations. So you can, say, trace a base image for structure, specify prompting in certain areas of the image and so on. InvokeAI is actually quite feature packed, and has lots of these augmentations hidden in the nodes UI, but Volta and other UIs also expose them more directly.