How can I "break" cms collection pattern

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I’m looking to create a grid like this with my cms;

Screen Shot 2021-04-02 at 12.57.41 PM
Screen Shot 2021-04-02 at 12.57.41 PM2422×1192 466 KB

Screen Shot 2021-04-02 at 1.01.25 PM
Screen Shot 2021-04-02 at 1.01.25 PM2264×1276 400 KB

I don’t want it to be so “regular” and I would like to break the consistency and put some blogs at different sizes.
How can I do that?

Thanks!