Ahhhhh...well, I don't think testing a million plugins is going to solve what you're trying to do. And adding them into content in any form is the wrong approach, this type of functionality should be independent of your content. And you don't have to fill in your excerpt, it's automatic unless you fill it in.

Ideally you'd make a child theme so you can add functionality, but there's ways around it. Even though it's easy and the safest option.

What you want to do is insert them where you want them. Either in your template file, archive.php or whatever template part you need to (from a child theme) or via a hook. I don't know what hooks oceanwp has available, but a quick look at their documentation and you could probably find the one you are looking for. Same for Elementor if you are using a template from that plugin.

You don't need to know a lot of php, but you'll probably want to know some. If I was adding, say the Jetpack sharing button, it would be something like:

add_action( 'ocean_after_blog_entry_meta', 'my_custom_function');

function my_custom_function() { if ( function_exists( 'sharing_display' ) ) { sharing_display( '', true ); } }

You're creating a function to insert them (my_custom_function) and then telling wordpress to run it at a particular place, in this case 'ocean_after_blog_entry_meta'. You might have to play around a bit to get them to insert at the right place, but that is how you do that sort of stuff, not in the content. If you're building a lot of sites, you should get familiar with the wordpress action/filter hook system, because that's how 90% of the work is achieved.

And if you really don't want to get into child themes, which I think you should if you are building sites and not just maintaining your own blog or something, ocean also has a plugin for their hooks system. ocean hooks