Hey, I'm in a similar boat (and also freshly post-top). I've had great luck with Gender Free World, but I also got a bunch of shirts made through Ratio. They're not GNC/trans-specific, but they were very willing to work with me on measurements and such. Once my measurements were in there, I just ordered what I wanted. They're not cheap, but I've had their shirts for five years or more, and they've held up really... Source: over 1 year ago

Lastly, I've found just getting custom made clothing is usually best for me nowadays. Woodies has done me right, I have multiple dressier shirts from them that fit perfect, also a denim jacket that is also fit to my size. There is a lot to be said about getting custom made stuff for us larger folks. For the price they charge, and how long they have lasted, I would suggest that. I know there are also... Source: almost 2 years ago

If you are on android I have succesfully used SyncMyTracks: https://syncmytracks.com/ to import my historical activity form google fit / suunto into Garmin Connect. It does include Samsung Health as an account it will sync. Allows syncing both ways, and you can have it automated (can't remember which features require purchase - but its not expensive and the automation works very well - never have to remember to... Source: over 2 years ago