Anyway to convert a plugin to become a shortcode?

Sure, but it will take a little bit of hacking.

I took a quick look at the plugin and what you want is in the function rax_social_media_share_show_option(). I would copy it and make a new function with just the part that builds up $button_code. That’s from line 315 to 516.

Add a simple one-tag shortcode that returns $button_code and Bob’s your uncle.

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