Package for Select2
Add package
meteor add natestrauser:select2
Add a specific class in your template for the select element you want to apply Select2 to:
<select class="select2-dropdown" name="state">
<option value="value1">value1</option>
<option value="value2">value2</option>
</select>
Enable Select2 for the specific class in the .js file of your template:
Template.MyTemplate.onRendered(function() {
// Enable select2
$('.select2-dropdown').select2();
});
See also the Select2 documentation.