I bought my tucking underwear from tcomfits. They’ve even sent me free samples for upcoming products over the last year! They are functionally amazing, but not necessarily the cutest. For my bras, to save money while I figured out what worked for me, I purchased different brands and types from Nordstrom Rack.

I super recommend using this calculator for bra sizing. They even have a setting for transfems which was exactly what I needed as other methods of measuring weren’t really connecting me with the right bras https://www.abrathatfits.org/calculator.php