What would be the best alternative apperitiffe for sherry?

The best alternative aperitifs to sherry include vermouth, which offers a similarly complex flavor profile with herbal and aromatic notes. Dry or sweet sparkling wines like Prosecco or Cava can also serve as refreshing substitutes. Additionally, fortified wines such as port or Madeira can mimic sherry's richness while providing unique flavors. Lastly, a well-crafted cocktail with gin or a bitter aperitif like Campari can also capture the spirit of sherry.