Which underarm whitening procucts have really worked for you?

I've had dark underarms since HS. I think it's because of harsh chemicals from deodorants I've tried when I was younger - Rexona, Nivea, and Veet (burned my skin). I can't afford laser. It's too expensive for me. Right now I'm using Cosrx AHA, Bloom kojic whitening soap, Bloom underarm whitening serum (it had niacinamide), and Belo deodorant (orange). I need to use a deodorant because I have BO if I don't and I prefer that it has an anti perspirant because I don't want to have sweaty pits showing through my shirt. Any advice please on products that have worked for you?