✅ Both so and accordingly introduce a statement that results from what was just mentioned—they are transitional words that signal what is coming next.
✅ So is best when you want to be more informal and conversational in tone (I wanted to buy a basket so I went to the outdoor market).
✅ Accordingly is somewhat formal, but occurs mainly in non-technical contexts (They had a lot to do. Accordingly, they started working an hour earlier than usual).
✅ Accordingly can also simply modify a verb instead of an entire statement (We expect you to know right from wrong and act accordingly).
Your transition words need some work? So act accordingly and use Grammar Coach!