How to fetch different data into different sections in HTML?

I have a page on which there are different bootstrap accordians. I have different models stored in the database, Now I want to fetch them in proper order.

class CaseStudy_list(models.Model):                    CaseStudy_id = models.IntegerField(primary_key=True)                    title = models.CharField(max_length=255)                    def __str__(self):                        return self.title                class CaseStudy_parts(models.Model):   #accordians                    case_study = models.ForeignKey(CaseStudy_list, on_delete=models.CASCADE)                    CaseStudy_part_id = models.AutoField(primary_key=True)                    CaseStudy_order = models.IntegerField(default="")                    CaseStudy_title_accordian = models.CharField(max_length=255)                    def __str__(self):                        return self.CaseStudy_title_accordian                class CaseStudy_content(models.Model):   #column 1 - text area                    case_study = models.ForeignKey(CaseStudy_list, on_delete=models.CASCADE)                    content_title = models.CharField(max_length=255, default="")                    content_text = models.TextField(blank=True)                    content_link = models.TextField(blank=True)                    def __str__(self):                        return self.content_title                class CaseStudy_Media(models.Model):    #column 2 - Media Area                    case_study = models.ForeignKey(CaseStudy_list, on_delete=models.CASCADE)                    content_img = models.ImageField(upload_to='casestudy/images', default="")                class CaseStudy_buttons(models.Model):                    content = models.ForeignKey(CaseStudy_content, on_delete=models.CASCADE)                    button_id = models.CharField(max_length=255)                    button_label = models.CharField(max_length=255)

<div class="page-layout"><div class="accordion" id="accordionPanelsStayOpenExample"><div class="accordion-item"><h6 class="accordion-header"><button class="accordion-button" type="button" data-bs-toggle="collapse"            data-bs-target="#panelsStayOpen-collapseOne" aria-expanded="true"            aria-controls="panelsStayOpen-collapseOne">            {{content.section_title}}</button></h6><div id="panelsStayOpen-collapseOne" class="accordion-collapse collapse show"><div class="accordion-body"><div class="container-area"><div class="col-content"><div class='introduction-content'><h3>CASESTUDY ID - {{casestudy_obj.id}} </h3><br><h3>TITLE - {{ casestudy_obj.title }} </h3> <br><h3>OBJECTIVE - {{content.content_text}}</h3></div></div><div class="col-data"><img src="{{content.content_img.url}}"></div></div></div></div></div><div class="accordion-item"><h2 class="accordion-header"><button class="accordion-button collapsed" type="button" data-bs-toggle="collapse"            data-bs-target="#panelsStayOpen-collapseTwo" aria-expanded="false"            aria-controls="panelsStayOpen-collapseTwo">            DATA COLLECTION</button></h2><div id="panelsStayOpen-collapseTwo" class="accordion-collapse collapse"><div class="accordion-body"><div class="container-area"><div class="col-content"><div class='introduction-content'><h2>DATA COLLECTION </h2><h2>Hello</h2><button type="button" class="process-btn btn btn-info">LOAD DATA</button><h3 id="time-taken">Time Taken : ________ </h3><h3 id="time-taken">Data Size : ________ </h3></div></div><div class="col-data"><img src="{% static 'images/iris-full-img.png' %}"></div></div></div></div></div></div></div>

def casestudy(request, CaseStudy_id ):    casestudy_object = get_object_or_404(CaseStudy_list, CaseStudy_id = CaseStudy_id)    casestudy_part = CaseStudy_parts.objects.filter(case_study=casestudy_object).order_by('CaseStudy_order')    context = {'casestudy_object': casestudy_object,'casestudy_part': CaseStudy_parts,    }    return render(request, 'casestudy.html', context)

There are different case studiess, each case study redirect to a new page where there is information stored in accordians; these accordians may be very different in numbers for different case studies.

Now I want to know, in order to fetch data, I have to make objects for every table. And how do you show the data stored in different tables?

This is my first django project, please help