I'll be starting mtf HRT in about a month, but I want to get a waist trainer /corset to start to have a more feminine shape before it takes effect. I've also heard

Been wearing 2 XS waist trainers for about a month😅Did it do anything?🥳14 days until I start HRT🥳 : r/transtimelines

MtF Waist Training Basics — Transpositions Coaching

MTF Getting a more feminine body? : r/asktransgender

The Art of Safe Waist Training for MtF Crossdressers

Using waist trainer pre-hrt worth it at all? : r/MtF

Been waist training for little over a year now, love the results. : r/transpositive

Crossdresser's Ultimate Guide to Waist Training in 2022

Broken to smokin' - 1 year HRT timeline, 35 MtF [nsfw] : r/transtimelines

Do any of you mtf ladies wear corsets or girdles? Over time, will it reshape your waist a little/lot? If so, how long does it take? - Quora

The Benefits of Corset Training for Trans Women