I bought a cheap handlebar bag from aliexpress and it was fine, but rattled a lot offroad
So I bought an aliexpress top tube bag, and its pretty good, but limits me to 1 big 1 small bottle

I currently run only my saddle bag with a spare tube and tools, and phone in 1 pocket, keys, earbuds and work card in the other (sweatpants with zipped pockets)