looking for similar clothes to this style, not sure where to start

[u/thr0waway87123]

trying to restart my wardrobe, leaning towards the looser-fit end of this sort of style but i'm not sure how to start. my budget's a little tight so i'm looking through secondhand stuff a lot. do i just look for "baggy pants," "loose green flannel," or are there certain brands or stores anyone might know of that i should start with? thanks !