I guess it depends upon your acceptance of "similar". By your question, you already know Chablis is Chardonnay, typically unoaked, from the Burgundy region of France. Growing conditions and terroir in Chablis, an old ocean bed I think, are purportedly one of a kind. Not being a white wine drinker (few glasses a year?), I cannot attest to this personally.
Not mentioned above is that some of the kit companies use the name Chamblaise for a Chablis-style wine. I didn't see any premium kits on a quick search but Winexpert (Vintners Harvest) and Spagnols (Grand Cru) both have Chamblaise kits. However, both are blends and don't mention Chardonnay.