I just recently got into EM's myself. Gottlieb wedgeheads are a good for us beginners - 1 player games that are less mechanically complicated. Maybe check out Buccaneer, Flying Carpet, Fun Land, Spin-a-Card, 2001, or a Jungle King. There are lots of videos on YouTube to see how they play.
As with SS games, pick a theme you'll enjoy and be aware that around 1970, they switched from challenging 2" flippers to 3" flippers (which are more fun, in my opinion).