Are there alternatives to a columella strut that can support a thick skinned nose tip?

Rhinoplasty without columella strut: a Columella strut is generally used to support the projection of a tip which is under projected and which has either a week or short columella. It is not needed in a nose with sufficient columella support and sufficient columella length. It is not a matter of the thickness of the skin but of the length and strength of the Cartilage supporting the columella. Your Columella in the photo you show does not appear to be short. The strength of the Cartilage of the Columella cannot be assessed except in person, however many noses that looked like yours can be done effectively without a Columella strut.

The important question is, What are you trying to change about your nose? This one photo seems to show a nose with a tip that projects strongly forward away from the face, and the tip sits lower than many people might prefer. You didn't say what you don't like about your nose, but would elevating the tip and bringing the nose back closer to your face be part of a desired change. A strut wouldn't help either of those two changes to happen.
I'd love for you to see some excellent professionally-designed morphs of what could possibly be done with your nose. Morphs could also help you identify better just what's bothering you, and help you set a goal for the rhinoplasty that's accurate for your tastes. Profile and three-quarter views would be particularly important in morphing your nose. (Side note: in my opinion, morphs should really be done by the surgeon, or he should direct an assistant as she makes the morphs. Morphs should be made with a constant eye to what actually *can* be done in surgery, for that particular nose, and the surgeon has that information and judgment best.)
And remember that rhinoplasty is an exquisitely difficult operation to get right, and you should only have surgery if you are able to make yourself very confident in your surgeon's skills. The changes that I discussed here--bringing a nose closer to the face and making a meaningful tip elevation--require advanced techniques, and skill that most plastic surgeons don't possess with expertise. For most noses, it's much better to not have surgery than to have inexpertly-performed surgery. Read my essay on how to stay out of trouble while selecting a rhinoplasty surgeon. And it also discusses how to take photos that are best for online evaluations.

Hello you need make a small projection of your nose little need to up tip of the nose and make a straight your septum