I’d use a component like Featured Lists to feature a topic list with a limited number of topics on the homepage. I believe if you insert the core list, you get an infinite list that lazy loads. Maybe that’s what you want? Though why bother then to add a separate homepage, rather than just building out your landing page right on that topic list view?
You could also look at my component Homepage Blocks to arrange your homepage layout. You can add components and arrange their order through an editor. The component also adds a body class homepage and an additional wrapper element homepage-blocks that you can use for better responsive styling. E.g. you could define a grid on the wrapper and adjust your layout depending on width, so you have one layout with a sidebar and main content on wide screens and a single row layout with all your content stacked up on more narrow views. Right now your sidebar items just shrink which might not look ideal on some widths.
This would be a simple example of a homepage grid that switches layout depending on width: https://forum.zolidar.com.