Just off the top of my head, I'd guess that rather than specific spending items, a lot of "corporate welfare" consists of tax-free benefits or breaks that real people pay for but corporations get as "incentives." (Insert debate on taxing individual people vs. taxing corporation people here.)
Not in any way non-partisan, but the old-school peace group the War Resister's League (founded back in post-war 1923) likes to point out a variety of expenses that stem from military adventures: https://www.warresisters.org/f... They include past military expenses like servicing payments on the portion of the national debt racked up by borrowing to pay for wars, or medical expenses of veterans (those people we said we supported but often seem to forget about as they need care for the next forty years or so).
If you set aside Social Security, which is supposed to be a savings plan not a tax-funded social program, then the military portion of the discretionary budget is substantial. It should be added that the War Resistors go on to suggest that people simply stop paying for wars. Simple? Maybe not so much.