I'd start with VITL14 and add one or more RN types. I personally like to use multiple VIT and RN models just to fill up VRAM. What exactly will fit depends on your output resolution and requires a lot of trial and error. I always have Task Manager open to monitor VRAM usage. In general, VIT = more realistic, RN = more artistic. It can take a lot of experimentation to find what exactly tickles your fancy. I constantly change which models I'm using depending on what I'm going for. This redditor did a nice comparison[0], and there are many more "studies" for which models to use - you can google around, there are new articles/studies being posted daily.

You can also try disabling use_checkpoints if you have extra VRAM, since it will render a bit faster (but uses more VRAM since it doesn't save intermediary 'checkpoints' to disk).

When/if you get bored, try disabling use_secondary_models which will use a lot more VRAM but can deliver results on a completely different level. You will likely struggle for a few days figuring out which parameters to tweak to get good results (e.g. tv_scale, sat_scale, etc, which are otherwise AFAIK ignored).

In any case I recommend reading A Traveler's Guide to the Latent Space, which I call "The Bible" since it covers so many topics and has links to various studies and will keep you busy reading for months ;)

Also check out the Discord for Disco Diffusion and Visions of Chaos, as you can read endless tips and tricks to getting amazing results.

Have fun! :)

[0] https://www.reddit.com/r/DiscoDiffusion/comments/t7p4bi/seas...

[1] https://sweet-hall-e72.notion.site/A-Traveler-s-Guide-to-the...