Here's link to a well know series on docking techniques.
I think you should take the time to go through the 90 minute seminar. A number of solutions for your challenge will arise out of your becoming familiar with the tools you have at hand... prop walk, doubled spring lines, fender placement, bow out vx. stern out strategies.... and on and on. There is a topic key at the bottom of the screen if you want to go right to some potential strategies.
In your case, you have convenient vacant slips to act as a "turning wye". To me that would be the most logical and simple solution... But you may find yourself in another place that has no such luxury so it is important to understand how all the aforementioned aides can help you in docking or mooring.
In my case, years ago I had a downwind slip that was a new experience for me. I had trouble getting the boat turned before the wind would catch the bow and push it toward the neighboring boats. I tried doubling the spring lines, a crew with a boathook standing watch on the foredeck and a few other solutions until it dawned on me that I was starting my backward turn too quickly, not leaving enough fairway room for the boat to turn before the wind caught it... So... I simply started backing all the way across the fairway,( the headwind wasn't going to let me hit the upwind boats). With adequate steerage and help from the prop walk, I could turn the bow around in the right direction with plenty of room left in the fairway. Simple as that.... but it was petrifying until I figured it out.
So, go through the seminar then, learn how things interact, grab a few slips of paper and sketch out a couple of alternative plans using doubled spring lines, prob walk, etc. good luck.