I think it helps that the comics I've been reading are mostly from Dark Horse. The High Republic comics vex me a bit, because I haven't worked out where they all fit in relation to the various novels ;)

The Knights of the Old Republic has a core cast of characters and is a really interesting run. It helps that I like the characters :) It has several long plots, and includes one of the wars between the Republic and the Mandalorians, if that's of interest to you?