Displaying posts in custom formation

I would like to output posts in order provided by this image (every 3 posts)

here is my blade code:

<section class="blog_area p_120">
    <div class="container">
        <div class="row">
            <div class="col-lg-8">
                <div class="blog_left_sidebar">
                    @foreach ($raksti as $raksts)
                    <article class="blog_style1">
                        <div class="blog_img">
                            <img class="img-fluid" src="" alt="">
                        </div>
                        <div class="blog_text">
                            <div class="blog_text_inner">
                                <div class="cat">
                                    <a class="cat_btn" href="#"></a>
                                    <i class="fa fa-calendar" aria-hidden="true"></i> 
                                    <i class="fa fa-comments-o" aria-hidden="true"></i> 05
                                </div>
                                <a href="#">
                                    <h4></h4>
                                </a>
                                <p></p>
                                <a class="blog_btn" href="#">Lasīt vairāk</a>
                            </div>
                        </div>
                    </article>
                    @endforeach
                </div>
            </div>
        </div>
    </div>
</section>

For those small blocks the "article" tag have class ="blog_style1 small"

I guess that there need to work with a "for" loop, so can anyone help me to achieve this task and explain a little how that works?

via Chebli Mohamed