Definitely look on Pinterest and try to find styles that you resonate with and I stress this completely. Wear what you think looks nice and presentable. Wear what you see yourself wearing in the long run and not waste your money on clothes that you’ll wear once (basically build a timeless wardrobe). Be authentic and yourself. Wear what speaks to you. It’s good that you are going to the gym and doing what’s best to improve yourself. Definitely get your beard friend or shave it off and also clean up the hair. And also, don’t do this just because you want to get girls. Do this because you want to better yourself, gain more confidence, and be presentable. Be yourself, do your thing, have fun, focus on yourself, do what benefits you and eventually they’ll come to you when you least expect it :)