@literally45-- You should try adding some apple cider vinegar to your baking soda shampoo. That's usually what is recommended for people with oily hair.
I love baking soda shampoo. It's basic, it works, it's cheap, what else can I want?
I also use homemade baking soda dog shampoo for my dogs. I use the same recipe and add a few drops of tea tree oil in it to treat fungi and also to deter fleas and bugs. It works great! It's gentle and doesn't harm their skin.