Bootstrap 5 image alignment - html

Question

I am working on a Django blog application and I have run into a problem with image alignment using Bootstrap 5. I am new at CSS and none of the solutions I see in SO are helping. My problem is I want the text under my images to always line up regardless of the height of the image itself. Here is a partial screen shot:
Here is the HTML code I developed:
{% extends 'base.html' %}
{% load static %}
{% block title %}Post List{% endblock title %}
{% block content %}
<div class="container">
<div class="row">
<!-- Latest Posts -->
<main class="posts-listing col-lg-8">
{% if page_obj %}
<div class="container">
<div class="row">
<!-- posts -->
{% for post in page_obj %}
<div class="post col-xl-6">
<div class="card">
<a href="{{post.get_absolute_url}}">
<img src="{{post.thumbnail.url}}" alt="..." class="img-fluid"></a>
</div>
<div class="card-body">
<div class="post-meta d-flex justify-content-between">
{% comment "" %}<div class="date meta-last"></div>{% endcomment %}
<div class="category">
{% for cat in post.categories.all %}
{{cat.title}}
{% endfor %}
</div>
</div>
<a href={{post.get_absolute_url}}>
<h3 class="h4">{{post.title}}</h3>
</a>
<p class="text-muted">{{post.content|safe | truncatechars:256 }}</p>
<footer class="post-footer d-flex align-items-center">
<a href="{% url 'show-user-profile' post.author.user.id %}" class="profile d-flex align-items-center flex-wrap">
<div class="avatar"><img src="{{post.author.profile_picture.url}}" alt="..." class="img-fluid"></div>
<div class="title"><span>{{post.author.user.username}}</span></div>
</a>
<div class="date"><i class="icon-clock"></i>{{post.timestamp | timesince}} ago</div>
<div class="comments meta-last"><i class="icon-comment"></i>{{post.comment_count}}</div>
</footer>
</div>
</div>
{% endfor %}
</div>
</div>
{% else %}
<p class="text-big">No Posts in this category</p>
{% endif %}
</main>
{% include 'sidebar.html' with most_recent=most_recent category_count=category_count %}
</div>
</div>
{% endblock content %}
The comments I am getting make it seem like what I am trying to do is impossible, and perhaps it is. Here is a screenshot from Adobe Lightroom that shows the concept - all the photos are placed in identically sized boxes regardless of aspect ratio. No distortion, just different size margins to fill in unused space. Now Lightroom isn't HTML but can't this be done? As I mentioned, all of the sample galleries I see use photos with the same aspect ratio, but that should not be a requirement of a gallery.
I would appreciate some help. Thanks