Hand pump sprayers

I have only ever done granule type fertilization and only to keep things alive. In my 2018 journal you guys have been telling me to use some stuff to kill my winter rye and it's a liquid. Have wanted a pump sprayer for a while but don't even know where to start. I only have ~2000 sq/ft so I don't need a self propelled or backpack sprayer (although it might be nice for weeds in my rock front yard) just a plain old hand pumper should work.

Is there one that anyone would recommend? I assume I'm going to want something that sprays at a consistent rate so I know how much I am actually putting down and something that doesn't break the bank would be nice. Figured that I didn't want the $7 from Walmart.