Is your feature request related to a problem? Please describe.
Would be great to have some pre-configured shopping lists available for user to opt-into in settings.
For example:

DF - Fishes:
** - fish A
** - fish B
and so on

It could be a checkbox in settings that would add or remove it from your shopping lists.
Right now, user would have to either add it all manually, or search online for a list. (im not sure where to search myself)

It would be sorted by expansions (work can start from latest expac, then go down to previous ones over time)
Perhaps we can use the community to help out with this and provide these lists?
I envision it being sorted by expansion first, then profession type.
Could also include other things like a full list of AH-bought mounts, high value battle pets, etc.

Just something to think about i guess :)

It isn't practical to create a large set of lists, and there will always be more items that could go in a list.

Using Wowhead's search tool and then exporting the item IDs to put in Auctionator is a good solution to the search problem though, as it offers just about any filtering you could want:

For example https://www.wowhead.com/items/trade-goods/type:8?filter=166:217:69;10:1:1;0:0:0 the exported IDs are

200061, 200074, 197755, 199344, 197745, 197754, 194970, 197741, 194967, 194730, 194969, 194966, 194968

And then importing it into Auctionator and saving it with the name "Fish"

There are a couple of items that aren't fish, but they're easy enough to remove when the list has been imported.

Wow didnt know I could do that. Thank you so much. :)