Arp studs and headbolts are the two most popular choices. The problem with the MKIII's head gasket wasn't due to anything wrong with the OEM head bolts or the OEM head gasket... it was the low torque rating. The OEM head gasket can take quite a beating when properly torqued.
I'm running ARP head bolts at 75ft lbs (the OEM head bolts will work fine at this level too, but I'd recommend new ones over reusing the 20 year old ones in your car now).
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