Trans man starting from zero, what are the essential items?

I've lurked on the sub for a little while and perused some of the threads about ftm fashion and noticed that while they largely focus on fit, especially for very short and curvy trans men, they don't necessarily talk about what clothing items work best or are needed for building a wardrobe from scratch. I thought it might be useful to open up a thread to discuss not just fit but what kinds of items to get and how to start building a wardrobe when all your existing clothes are dresses and blouses.

I don't have many answers as I just started building my wardrobe. So far I've put together 2 long sleeve button downs, 2 short sleeve button downs, undershirts, and a charcoal vest. I've been using the Duluth flexpeditions in black and brown for pants and some old girlfriend cut jeans from GAP (I think, they're very old) because they're not super form fitting.

But starting from scratch with zero clothes what versatile items would you say are essential for a brand new man to have?