These are the mods I recommend:
Craft Magic Items:
https://www.nexusmods.com/pathfinderkingmaker/mods/54
This gem of a mod has been updated by another user and can now be used safely since it's being actively bugfixed. It allows you to craft new magic items and also upgrade old ones, so for example if you find a +3 weapon you like, you can upgrade it to +5. I strongly recommend you do not cheat with this mod in order to preserve game balance.
Loot Checklist:
https://www.nexusmods.com/pathfinderkingmaker/mods/170
A mod that lets you view the loot that is in the Area you are currently in, including enemy/ally inventories. It is a simple list of what you are missing at that moment, it doesn't however tell you where the items are.
Scale XP:
https://www.nexusmods.com/pathfinderkingmaker/mods/24
Allows you to set an exponential XP scale that means you can reach level 20 by the end of the game. Check the discussion tab for some good advice. User Micah71381 recommends using a base multiplier of 1, divider of 15 and an exponential of 5 (using the 'Exponential' option - 3rd setting). However I feel that the exponential value of 5 might be a little too high, maybe about 2.5-3 might be better, since reports indicate you can actually reach level 20 by endgame, now.
NPC high-rez textures:
https://www.nexusmods.com/pathfinderkingmaker/mods/171
Provided by Owlcat themselves, apparently. Should work.
Hambeard's Better Vendors:
https://www.nexusmods.com/pathfinderkingmaker/mods/173
Includes a variety of features, not least of which is the Vendor Injector: this remarkable mod allows you to instantly (as in instantly, on the fly, without even restarting the game) add any item to a Capital Square vendor, so that you can purchase it. It's a very lightweight and should be safe to use, as well as safe to uninstall after use. It's technically a cheat, but it's a palatable one for items which are proving hard to obtain, or have been missed. It's a nice way to solve Artisan RNG, for example - if you know you've unlocked a certain tier but the game keeps ♥♥♥♥ing you on RNG, you can just sell the item you actually received and buy the one you wanted. There are also items which exist in the game's files but not in the campaign, such as Twin Serpents. Another thing would be the Changestaff spell which requires a non-magical quarterstaff as a resource, which, oddly enough, is quite a rare item, but not with this mod. Many thanks to Hambeard for creating this mod at my request.
Custom Companion and NPC Portraits:
https://www.nexusmods.com/pathfinderkingmaker/mods/100
This mod allows you to replace the portraits of your companions and various NPCs. However, the documentation is awful. See below for a short guide on how to install and use the mod.
Installation & Usage:
1: Download only the main file titled "REQUIRED - Companion Custom Portrait - REQUIRED" from the mod's Nexus page.
2: Install this file using Unity Mod Manager.
3: Launch the game. This creates many custom portrait directories in the User/AppData/Owlcat Games/Pathfinder Kingmaker/Portraits directory. Note that override directories will be created for mercenary characters you've made, as well as vanilla NPCs like Amiri.
4: Replace the portrait .PNG images in each of the new directories with the ones desired.
Custom Player Voice - Male Adventurer -
https://www.nexusmods.com/pathfinderkingmaker/mods/73
This mod replaces the existing male 'Confident' voice with a new one. Normally mods like this tend to be quite poor, but the quality of this mod is astounding, and the voice itself is far superior to the vanilla voiceset it replaces. Check out a showcase
here.
Bag of Tricks:
https://www.nexusmods.com/pathfinderkingmaker/mods/26
I previously recommended Cheat Menu, however Bag of Tricks is constantly being updated and is by far the better choice now. It allows you to modify an astounding number of things, such as experience, gold, and so on.
Cleaner -
https://www.nexusmods.com/pathfinderkingmaker/mods/39
This mod does a few different things, but the principal thing I like is that it adds a 'clean' button to the loot window when you leave a zone. It removes all loot and NPC corpses from the zone, which reduces the size of your saves. I think this will help prevent the issue where loading times for saves begin to get longer and longer.
Toggle AI/Stealth Hotkeys -
https://www.nexusmods.com/pathfinderkingmaker/mods/72
Very simply adds hotkeys to toggle these two abilities. Currently you have to manually click on the buttons in order to toggle these on or off, which, to anyone who has any RTS experience or simply knows how to use a freaking keyboard, is heresy. Having the option to toggle them off with a specific keyboard shortcut is rather essential, in my opinion.
Faster Menu Book Zoom -
https://www.nexusmods.com/pathfinderkingmaker/mods/67]
This is a rather simple but nice mod, that does what it says on the tin. God knows what Owlcat were thinking with that fade-in intro, it's annoying as hell.
UI Extensions -
https://www.nexusmods.com/pathfinderkingmaker/mods/99
This adds a number of improvements to the UI, but the most critical thing for me is to always have pet portraits visible. It annoys me to no end that I can't see, at-a-glance, what the status of my animal companion is, without going into a separate menu. The mod's other options are just gravy, in my opinion.