JSFiddle - React, Tailwind, and code Playground

HTML

<div id="lista-noticias">

  <div class="box-noticia">
    <div class="conteudo-noticia">
      <a href="qualquer.coisa1.html">a</a>
    </div>
  </div>

  <div class="box-noticia">
    <div class="conteudo-noticia">
      <a href="qualquer.coisa2.html">b</a>
    </div>
  </div>

  <div class="box-noticia">
    <div class="conteudo-noticia">
      <a href="qualquer.coisa3.html">c</a>
    </div>
  </div>

  <div class="box-noticia">
    <div class="conteudo-noticia">
      <a href="qualquer.coisa4.html">d</a>
    </div>
  </div>
</div>

JavaScript

$('#lista-noticias .box-noticia .conteudo-noticia').each(function() { 
          $(this).find("a").replaceWith("<span>abcd</span>");
        });