1st off, to get a good finish, you have to spray doors. A roller or brush will leave
undesirable brush or roller marks.

If they are standard run of the mill hollow core or solid interior doors, you can use a latex based satin, semi gloss or gloss paint so they have a higher degree of durability. I prefer Semi gloss.

When I remodeled my place, I created a makeshift hanger consisting of a 2x4's hung off my deck, used eye hooks to hang all the doors and gave them 2 light coats with an airless sprayer. Worked great on all the hollow core and louvered doors.