Clothes stylist

Are there any personal stylists in the area or can anyone give me advice? My boyfriend is 6’5 and slim, it’s REALLY hard to find clothes for him. He wants to dress more his age and professional for work but 1) it’s super hard to find clothes that fit him properly 2) he needs help on how to put outfits together. I really want to help him but I struggle to put outfits together myself.
He wants someone to help him and guide him in the right direction. Any advice? Are there any people around here who can help with that?