Need help choosing a new deodorant to try

I've always struggled with some underarm BO, but it was never bad enough that I assumed it was medical or anything. Growing up, every deodorant I tried would only work for about 2 weeks before I would start to smell through it, which made no sense to me, but I finally found Degree Clinical Strength women's and it worked like a charm. It started really climbing in price and now runs for like $9 but only lasts about 2 weeks or so, so I made a switch to regular men's Degree (cool rush) because it's what my bf uses and it worked great for both of us, plus the twin packs are super cheap and last forever. Recently I feel like it's been less effective for both of us, and I'm not sure if it's because they changed their formula secretly or something or if it's something to do with our own bodies. No habits in showering, applying, sweating, etc have changed. That being said, we want to try a new deodorant, but money is already a bit tight and we don't want to waste it on trying a bunch of new deodorants that don't work. Any recommendations? For some context we both typically don't shave our underarms, but both will occasionally, so I've found "powder" deodorants work better than gels. We also both need an actual antiperspirant deodorant.

tldr: best affordable powder antiperspirant for stinky people?