Hi! Transmasc enby here who has a little experience maybe.
The first binder I got was the Ultimate Chest Binder from Underworks (https://www.underworks.com/ultimate-chest-binder-tank), I liked them because I'm overweight and they also compressed my stomach a bit and my butt and hips to make me look less curvy. But recently shipping has gotten prohibitively expensive from America (I'm Aussie), so I had to switch.
My friend got me the long chest binder from Sock Drawer Hero (https://sockdrawerheroes.com/collections/binders/products/sdh-chest-binder-long), it's super comfortable and soft feeling material, it only binds the chest but it does an amazing job at it, I'm really happy with it personally.
Hope this helps!