My favorite is probably Isidore the Laborer. Just a humble farmer who performed acts of charity beyond his means, and god always compensated for him in these instances. His story is very simple but still a testimony to holiness.
St. Jerome as well, but for different reasons. I ask him to pray for me whenever I get crabby and am about to start arguing with people online or in real life, I know how much vitriol spilled into his intellectual life if he had access to the internet oh boy.
And St. Wenceslaus my patron saint, because he is a living testimony that faithfulness and charity can be found even in high stations of life like royalty, because I tend to resent the rich and those in power so I need intercession like that.