What deodorant can I try?

I have never had underarm odor before. I would even go without deodorant during the day and everything would be fine at night. I'm not a natural sweater, but lately I've been finding that I get hot easily/have less heat tolerance than I used to. Of course, I get wet under my arms when I'm hot. I notice more and more that I have odors, even if I washed myself (dove bar soap without perfume). I don't let my hair grow naturally but I am doubly careful for fear of odor. I find very little deodorant in pharmacies, but much more anti sweat. For the moment, I use one of the brand Attitude. I'm not sure what to do, since it's new to me. Being a telecommuter, I sometimes wash my armpits 2-3 times a day because the smell is unpleasant. The odors have only appeared in the last few months. Maybe it's a hormone imbalance. I'm not used to it so I don't know what to do with it.