Where’s a good place to buy reasonably priced women’s business attire???

I recently just got a job at at hotel working front desk and our boss loves us to look fashionable and classy our uniform consists of a black jacket/blazer , white collared shirt, black dress pants ,& dress shoes . All my clothes are currently from Walmart and bealls outlet, what are some other reasonably priced places that sell business attire there was a very small selection at the store I went to especially since I have broad shoulders and had to get a size 18 for my blazer i could only find one 😩 . Any advice greatly appreciated 💕🙌