EVERYONE is using a Form 1040 this year--so no problem -- you do not have to look for it. That is what your tax return will be prepared on. Due to tax reform there are no more Form 1040EZ or 1040A's. Everyone has a "postcard size" Form 1040 with six possible schedules to go with it.
https://www.irs.gov/forms-pubs/about-form-1040