Go to the next/previous paragraph (e.g. empty line) using Templater scripts. Put all files to your Templater scripts folder, add both .md files to the Template Hotkeys and assign hot keys.

NextParagraph.md

<%* tp.user.para(tp, false) %>

para.js

// Move cursor paragraph up or down
// Paragraph separator is an empty line (probably with spaces)
async function para(tp, backwards)
{
    let editor = app.workspace.activeLeaf.view.editor;
    let cur = editor.getCursor("from").line;
    if (backwards) {
	cur--;
	while (cur > 0 && editor.getLine(cur).trim().length != 0) cur--;
    }
    else {
	cur++;
	while (cur < editor.lineCount() && editor.getLine(cur).trim().length != 0) cur++;
    }
    editor.setCursor(cur, 0);
}
module.exports = para;

PreviousParagraph.md

<%* tp.user.para(tp, true) %>