Agreed, my suggestion to use LCP doesn’t fix the underlining issue of not having built-in organization within the app, but only an alternative to scrolling or searching through a metaphorical junk drawer. Since I couldn’t sleep last night, I’ve outlined what approaches are inherent in the app.
I think this is the original intent of the Workflow developers. There are 15 different colors to choose from, so if you can organize all your workflows into 15 categories this would be a quick visual option. You may have to broaden the scope of a category in order to keep everything within 15 colors.
Spatially by category
Move all your related workflows together. All workflows related to music/playlists get moved together; all workflows related to filing docs to cloud together, etc. Pair this approach with colors or icon to create visual blocks of workflows.
Spatially by run type (Normal, Today Widget, Action Extension)
Since action extensions are most likely to be activated from the share sheet, move these to the bottom. Normal workflows only run in the app, so put these at the top. Put Today Widgets in the middle. If you color code these like @nathanieloffer, you’ll have a nice visual break as you scroll through the three types.
Spatially by type of input
Again, move all workflows that take a particular input together. Might be harder to organize workflows that take multiple types of input.
By frequency of use
Move your most used to the top to reduce scrolling. Would need to be paired with other approach to be effective.
Put finished workflows toward the top. Workflows that are still being written or tested toward the bottom. Specify a specific color to indicate a work in progress. Would need to be paired with other approach to be effective.
This is more of a search approach than organization. Let’s call it the SEO approach — stuffing the title with keywords or prepend/append titles with a category (per @sylumer) or emoji (per @dfay) that can be used to find/filter.
Lastly, don’t even bother trying to organize them until Apple provides something better within the app. Until then “organize” by using a 3rd party app like Launch Center Pro, add them to your home screen or make more use of spotlight.
Given the app’s current options, a combination of the above is your best bet. YMMV