JSFiddle - React, Tailwind, and code Playground

HTML

<select class="slc_Reuniao">
    <option value='PA'>Para</option>
    <option value='BA'>Bahia</option>
    <option value='MG'>Minas Gerais</option>
    <option value='ES'>Espirito Santo</option>
    <option value='PE'>Pernanbuco</option>
 </select>

 <select class="slc_Reuniao">
    <option value="SP">São Paulo</option>  
    <option value='RJ'>Rio de Janeiro</option>
    <option value='TO'>Tocantins</option>
    <option value="AC">Acre</option>  
    <option value='BA'>Bahia</option>
 </select>

 <select class="slc_Reuniao">
    <option value='AC'>Bahia</option>
    <option value="BA">Acre</option>  
    <option value='TO'>Tocantins</option>
    <option value='SC'>Santa Catarina</option>
    <option value='PA'>Para</option>
 </select>
 
 <select multiple="multiple" class="selectStyle slc_Reuniao"  name="Filial" id="Filial">
            <option value="1-1" data-idimplantacao="1"> Natal</option>
            <option value="5-5" data-idimplantacao="5"> Caju</option>
            <option value="5-364" data-idimplantacao="364"> Canteiro - Porto 2016 SPE</option>
            <option value="14-26" data-idimplantacao="26"> Itaquaquecetuba</option>
            <option value="17-26" data-idimplantacao="26"> Diadema</option>
            <option value="18-1" data-idimplantacao="1"> Macaiba</option>
            <option value="18-5" data-idimplantacao="5"> Recreio</option>
            <option value="20-26" data-idimplantacao="26"> Tamanduatei</option>
            <option value="26-26" data-idimplantacao="26"> Limão</option>
            <option value="28-28" data-idimplantacao="28"> Sao Gonçalo</option>
            <option value="29-26" data-idimplantacao="26"> Perus</option>
            <option value="30-30" data-idimplantacao="30"> Sorocaba</option>
            <option value="34-34" data-idimplantacao="34"> Campinas</option>
            <option value="35-35" data-idimplantacao="35"> São José Rio Preto</option>
            <option value="36-36" data-idimplantacao="36">...

JavaScript

$( document ).ready(function() {   
    var n;
    var selects = $('select.slc_Reuniao');
  //console.log(selects);
    for(n = 0; n < selects.length; n++){
      var options = $('select.slc_Reuniao:eq('+n+') option');
       //console.log(opt);
      var arr = options.map(function(_, o) {
        return {
            t: $(o).text(),
            v: o.value
        };
    }).get();
    arr.sort(function(o1, o2) {
        return o1.t > o2.t ? 1 : o1.t < o2.t ? -1 : 0;
    });
    options.each(function(i, o) {
        console.log(i);
        o.value = arr[i].v;
        $(o).text(arr[i].t);
    });
  

}
 });