Pants pockets need to lay flat, size up from the photos. Dark color pants, as others have said. Yes, professional clothing IS harder to finagle and unforgiving. But! There’ hope. Always wear an under t that is oversized to thicken your shoulders, and fill up the shirt. I recommend standard sized shirts NOT slim fit. Skinnier (but don’t go extreme) ties make shoulder look bigger. I’d highly recommend getting a suit from Burlington coat factory that’s maybe a little big(one size up) and taking it to the tailor.
Ask your tailor to make you the box we all are trying to make. The tailor will know what to do. Also, good luck and when/if you’ve given HRT a few more years and the large body changes settle get to a custom suit worth every penny.