what are some essential utilitie modules?

im in the process of building a eurorack system in a tiptop audio mantis case for my Dark Ambient project.

what i have so far
Synthesis technology E352(is on the way)
Malekko Quad Vca
XAOC Tallin VCA
Tiptop Audio Forbidden Planet
Doepfer A-124 Wasp filter
Ladik m-171 pannable mixer
Make noise maths(will get this next month)
considering either a Z-dsp or Erbe Verb

but dont know much about utilities,what are essential in a setup?preferrably in a small hp size?

I highly recommend a Mutable Instruments Kinks - if for nothing else other than the Sample & Hold section - but you may be surprised with the other sections too!

I would also go through all the Erica Synth Pico modules and read all the descriptions - they are short and to the point. Might give you some ideas.

Thanks for the recommendation of Kinks,this defo seems that it could be of good use.

this may sound stupid, but i really love my AMSynths 8016.

I find myself using the Happy Nerding 3xMIA in every patch. I also use Links and Pique (After Later Audio’s Peaks clone) a lot.

Yeah, those little 6 hp wonders from Happy Nerding are pretty amazing...and function-dense, too. For mixing, attenuverting, all of that, they're an awesome solution.

have just ordered a MI Kinks.will check the other recommendations

You could make the most of modulation sources with a DPW Design AV-1, your two inputs can be attenuverted, there is also a SUM output and a A>B output so lots of options for screwing around with your CV signals to create more. You can even throw a couple of gate sources at it and get a new sequence based on the two input.
That HN 3xMIA does look tempting though ;-)

EDITED May 28th 2020, 18:10

You could make the most of modulation sources with a DPW Design AV-1, your two inputs can be attenuverted, there is also a SUM output and a A>B output so lots of options for screwing around with your CV signals to create more. You can even throw a couple of gate sources at it and get a new sequence based on the two input.
That HN 3xMIA does look tempting though ;-)
-- wishbonebrewery

that one does look good,have to check it out,have put it on the list

The other "screw-with-CVs" thing that's both highly useful AND cost-effective ($99!) that I'd recommend would be Tiptop's MISO. For modifying/manipulating CVs and modulation signals (and audio, too), the thing's pretty much a super-capable blank slate, with loads of different potential for different users. For small builds, I'd go as far as saying that it's an essential utility component.