$('#form_img_location').repeater({
 initEmpty: false,

 defaultValues: {
 'text-input': 'foo'
 },

 show: function () {
 $(this).slideDown();
 },

 hide: function (deleteElement) {
 $(this).slideUp(deleteElement);
 }
 });

var tagifyFields = document.getElementsByClassName("input-tagify");
 var tagifyFieldsList = Array.prototype.slice.call(tagifyFields);
 if (tagifyFieldsList.length) {
 tagifyFieldsList.forEach(createTagifyFields);
 } 

 function createTagifyFields(input) {
 $.ajax({
 url: '/MyController/Taglist',
 method: 'GET',
 data: {},
 success: function (response) {
 // var input = document.querySelector('input[name="input-custom-dropdown"]'),
 // init Tagify script on the above inputs
 var tagify = new Tagify(input, {
 whitelist: response,
 maxTags: 10,
 dropdown: {
 maxItems: 20, // <- mixumum allowed rendered suggestions
 classname: "tags-look", // <- custom classname for this dropdown, so it could be targeted
 enabled: 0, // <- show suggestions on focus
 closeOnSelect: false // <- do not hide the suggestions dropdown once an item has been selected
 },
 originalInputValueFormat: valuesArr => valuesArr.map(item => item.value).join(',')
 })




 var tagify = new Tagify(input, {
 whitelist: response,
 maxTags: 10,
 dropdown: {
 maxItems: 20, // <- mixumum allowed rendered suggestions
 classname: "tags-look", // <- custom classname for this dropdown, so it could be targeted
 enabled: 0, // <- show suggestions on focus
 closeOnSelect: false // <- do not hide the suggestions dropdown once an item has been selected
 }
 })

 new Tagify(input);
 }
 });
 }

<div id="form_img_location">
<div class="form-group">
<div data-repeater-list="form_img_location">
<div data-repeater-item>
<div class="form-group row ">

<div class="col-md-3 input-group-sm">
<label class="form-label">Tags:</label>
<input class="form-control form-control-sm tags-look input-tagify tags">
</div>
<div class="col-md-1">
<a href="javascript:;" data-repeater-delete class="btn btn-sm btn-light-danger mt-3 mt-md-8">
Delete
</a>
</div>
</div>
</div>
</div>
</div>
<div class="form-group mt-5">
<a href="javascript:;" data-repeater-create class="btn btn-sm btn-secondary">
<i class="ki-duotone ki-plus fs-3"></i>
Add Row
</a>
</div>
</div>