Best way to get good tickets?

I haven't sat in the lower section in years just because of the prices lately. I'm trying to plan ahead thinking it'll get me some better prices bc I want to go to a game and sit behind stros dugout.

What would yall suggest in terms of finding cheap really good seats? Astros website, just refresh stubhub daily, etc? I'm thinking going to some random week night game is my best bet.