The best replacement for drop down is pull down.

The best alternatives to drop down are rated as following:
★★★★★  pull down
★★★★★  drop-down
★★★★  bullhorn
★★★  listbox
★★★  drop through longboard
★★★  radio buttons
★★★  flat bar
★★★  drop down
★★  list box
★★  whisker biscuit
★★  drop through
★  combo box
  dropdown

Your alternative for drop down is not listed? Suggest!
Speaking about drop down, one probably shouldn't forget about button.

Other search terms related to drop down and their ratings are:
★★★★★ button
★ multiple select
You have in mind a companion for drop down and it is not yet here? Propose!



Google Trends

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drop down
pull down
drop-down