For some reason SIG P229 never did it for me, but I'd give P290 a good look. Its biggest disadvantage in my view is that it's a bit chunky, so you get 6+1 (8+1 with factory extended magazines) in the same space where SCCY packs 10+1. Also it, together with P250, is a champion of all long trigger pulls. But since we started on the premise that such a pull is okay, here it is.
If size is not a problem, I'd also consider HK USP with a LEM trigger (I think it may be called "Variant IV"). It is a true DAO. That gun is stupidly reliable and can digest a variety of ammunition. Well, you pay HK prices for it.
I thought about the DAK on SIGs too, but never warmed up to its kinks, like the oddball fake reset.
The Boberg/Bond? Yes, please. It's the only true pocket 9mm in existence that is a good shooter. Mind that it's a little controversial with the sensitivity to the ammunition. Also, the lack of last-round hold is irritating.