Crafty
AlchemicalSavant + MasterAlchemist – 9th level infusions as a potion.
Cannith Wand Adept –Double Wand Wielder is still better.
Master of Masks – Items that you build and enhance. Steep skill requirements and horribly weak but it really makes you artificer of many roles.
Merchant Prince – The other side of crafting; getting paid. Intelligence casting too.
SharnSkymage + WindwrightCaptain – I see your boots and rapier. Then I raise it with a shortsword. And an Airship! Not enough, Rebuke! Half-elves take bribery to the trans-national level.
Trapsmith – It’s a trap! Yet a very tempting spell list nonetheless.
UnboundScroll + Maester – Perpetual scroll library for gnomes.
Pugilist
Renegade Mastermaker – At no point is it more efficient to turn a human into a warforged.
Spellcarved Soldier – Anyone not want a sixth ring, a robe slot, and stackable extends? Well then you can keep your 4 CL.
Citadel Elite, Cyran Avenger, Doomlord, Topaz Guardian – Lose CL for BAB for minimal prereqs and no arcane/divine hang-ups. Doomlord is actually the most synergistic.
Master of the Unseen Hand – How me, a ring of telekinesis, and all the weapons I made bounced off your face. Take this if your DM asks how you are carrying it all.
Paragnostic Initiate – This is for your BSF, not you. If you have a gormless BSF, write it on his character sheet and start buffing him with physical augmentation. Then change those enhancement bonuses to strength into circumstance, then competence, etc
Ruathar – I hate elves, but I like bribery and weapon proficiencies. To summarize, I love elves and they told me how to call off their zombie ancestors.
Squire of Legend – Nice for team players. Weak versions of white raven tactics.
Generalist
Dragon Prophet – Take four levels and you have traded in 1 CL and BAB to get a minor item or ability over a straight artificer. Big plus here could be your dragon patron.
High Elemental Binder – The best part is gaining a pack of elemental friends since you can already make the armor and weapons.
LegacyChampion + UncannyTrickster – If you have a legacy item it’s a dead heat with straight artificer.
Loremaster – Ah, a nice bonus feat to round out my build.
Techsmith – Gond fishing for a domain? Otherwise not really worth it.