Just a heads up I'm playing with Turn based mod, eldritch arcana and a few others installed, I'm playing on hard and I'm level 14, I turned on share experience since my last run ended up with me overleveling most encounters in the depths.

I'm getting pummeled by golems with the madness enchantment in the tenebreous depths.
I'm playing a 4man party with a Scroll savant (Transmutation/Evocation), Kineticist (Earth/Fire), a 1Monk/Druid (beast shape build with crane style) and a good old 2h Barbarian (invulnerable rager).

I'm starting combat casting both web and a bowling deadly earth+wall to try and slow them. but I can't keep them CCed for long and deadly earth/wall do pitiful dmg thanks to their DR and insane HP
They keep trying to mind control my wizard casting "corrupting touch" at range but he's deadweight once combat starts after casting web and all he does is try to shot at my party with his crossbow so its not a big loss.
The druid is having trouble doing any significant damage thanks to their DR and high AC but at least they can't touch him.
The barbarian has a good chance to land first 3 hits or so and does good damage but he eventually gets surrounded, fails a save for madness or goes down from chip damage.

Any tips for dealing with golems with this group?
Last time I fought them in the main campaign I kept them prone with the grease spell and ganged up on them with all my melee (outflank+combat reflexes with a few melee is nuts) but I didn't want to play another conjuration specialist this time around and I'm playing a smaller party so I can't brute force them either.

Well 1st evident problem is you have nobody to cast unbreakable heart that would help(iirc) against mind control thingie. 2nd obvious problem is you have no damage dealers in the party (no, barb doesn't count as the thing dies whenever something looks at him funny and doesn't even do much damage anyways, unless you have x4 lethal assault, which is way too much of a commitment for a roughly 10-20% damage boost).

Really, main problem seems to be your kineticist somehow not keeping everything prone forever for whatever reason. You probably lack on fury's fall or your stats are not optimized for trip.

As to what to do - heightened grease is always decent against golems. No SR allowed, reflex save and can actually melee things comfortably if you cast it on the edge of your engagement.

Don't think either TB or arcana bear much weight on the matter.

I posted after ragequiting yesterday but got them first try now, maybe I just got unlucky on my trys before or got too tired to think a better strategy.
I do have fury's fall and the trip feat tree on the kineticist and 28dex+24con is there any other feat I might have overlooked? He trips casters pretty much 100% of the time but some big bruisers are problem, the regular golems had 48CMD and the "boss" golem 61CMD vs his 33CMB for example.
Should I enlarge him or does elemental overflow takes care of that?

A paladin is really strong and useful in the dlc. He can remove those curse and confusion effect quickly. If he can tank, his high save will be a great asset versus the skillful golem to make them turn around while your group kill them.

The remove curse and confusion(madness) part is optional but you will need a high save tank for later floors.

Are those numbers without items? cause it looks like that. You should be at like 30/28 without any items at all(just using buffs from casters). Golems are bit hard to knock down whatever you do. Just heighten grease them and that't that. Quick and dirty option. Works like a charm. Water kineticists can do it too as they get grease thingie..

So go grease or bust vs goelms it is then.
As for the stats yeah, that's with starting 18dex/con, investing the level ups on dexterity and a +6 item. Not sure if legendary proportions is worth it since the size increase will lower his attack and I haven't tried it but reduce person might lower CMB.

not exactly grease or bust. One can have a nice damage-dealing melee character that can happily kill a golem per round while being totally untouchable. so that's an option.
alchemist does decently well also.
Spell-wise most things that are no SR and target reflex are decent. I like grease cause it comes from a school that already has some of the best CC spells out there and is exceedingly easy to use as all you need to do is wait till enemy engages your front-line and cast grease on the edge(and it's not so big that it'd interfere with movement much). Done. As a bonus, prone enemies take -4AC against melee(which tends to be the thing that deals the bulk of damage)