- More Archotech Garbage
- Call of Cthulhu (a lot of fisherman-themed apparel there, seems fitting to fish them up!)
- Gimmicks
- More Melee Weapons

Heh, someone beat me to it on suggesting More Archotech Garbage. But I second it.

Also consider adding something like Neutroamine to the list, or other uncraftable items?
And maybe anything one would normally find in Ancient Dangers?
Since A Dog Said is in the compatible list, maybe add support for EPOE and it's fork.

rimatomics/rimefeller/srts

- Ultratech: Altered Carbon by Helixien
- Cybernetic Organism and Neural Network by Kikohi
- Vanilla Books Expanded (message in a bottle perhaps? Contains either a map or blueprint)

Originally posted by LoggerC4:

- Ultratech: Altered Carbon by Helixien

Oh, this! Imagine fishing out a stack with a person in it!

Vanilla: maybe some psycic lances or orbital weapons
Royalty: plenty of crowns to fish up, eltex skullcaps also seem pretty sturdy if stored in mud, psylink neuroformers don't detiriorate so one lost in a lake makes sense and psypower trainers could also be interesting loot

Just to drop massive +1 to:
More Archotech garbage
Altered CArbon
Vanilla Books Expanded

No +1, gimme new ideas :P

EDIT: Apparently Steam Flanders doesn't let me call you fornicators, even endearingly

Expanded Materials - Plastics!

And add an educational pop-up about environmental awareness!

Expanded Prosthetics and Organ Engineering (original/fork): Prosthetics in general, with the lower-tier stuff like hook hands or steel arms being more common and bionics being extremely rare. MA-AI chips would also be a fun thing to fish up.

If you want to get really morbid, add body parts like eyes or lungs to the loot table.

How has nobody suggested A Rimworld of Magic, yet?
So much good, strange things could be grabbed from that.
Misc. Robots++ could be hilarious, as well, since you're already allowing AI cores.
Oh, and look at Clockwork and Steam, that's a fun one to draw from.
(I'm literally just looking through my list of all the mods I've subscribed to for suggestions, cause I love this concept.)
Prostheses+, if you feel like fishing up an arm and a leg from some poor sucker that drowned.
I could recommend stuff from Save Our Ship, but a lot of the stuff in that would be large. There could be a couple things that came in from orbit, though.
Monster Hunter Rimworld could be a fun choice.

Honestly I'd love the ability to disable (or decrease likelyhood) of some of the rarer treasures, I'm playing a sea ice run and fishing is a good way to get wood and stuff. But it's too easy when i get 8 SMGs?

If you take a look through the patches the mod has and see anything that is appearing too often I can tweak the numbers! https://github.com/juanosarg/VanillaCuisineExpanded-FishingTreasuresAddOn/tree/main/1.2/Patches

Dwarven Crafts (Continued)- Trade goods that are only good for making some silver, but would be nice to occasionally hit the jackpot with a gold pot.

Star Wars Slave Bikini Outfit- For grins and giggles.

Project Rimfactory Revived- Maybe just the parts like robot arms and machine frames.

Tabletop Trove - Additional Joy Objects and Decor - Wish for fish, Randy sends a board game instead.

TechSales- Fishing up research boosts would be nice.

The Vanilla Weapons Expanded patch could be expanded to include the 3 new addons, Tribal, Non-Lethal, and Frontier

Save Our Ship 2- Survival belts, EVA suits, and maybe torpedo ammo. Plus the rare implants to go along with the EPOE stuff.

https://steamcommunity.com/sharedfiles/filedetails/?id=1802857253&searchtext=AOTC

And

https://steamcommunity.com/sharedfiles/filedetails/?id=2298661009&searchtext=AOTC