There were quite a few in the Legends continuity.
Some of the earliest novels, the Han Solo Adventures from the late 1970s, focus on the titular scoundrel and don't feature Force-sensitive characters at all or only very little. Likewise, the Lando Calrissian Adventures published a few years afterward focused on Lando's escapades and not on any Jedi or Sith characters.
The X-Wing series of novels partially have little to no focus on the Force. While the bulk of the novels feature a Force-sensitive character named Corran Horn, who eventually receives some minor Jedi training and comes into possession of a lightsaber, for the most part his Force-sensitivity is downplayed and a great deal of the novels' action focuses on space combat and on the non-Force-sensitive members of Rogue and Wraith Squadrons and on the Imperial villains of the stories. Horn only appears in the novels written by Michael Stackpole, which focus on Rogue Squadron. Aaron Allston wrote several more that feature Wraith Squadron (which have a minorly Force-sensitive character, Tyria Sarkin) and one that focuses on Wedge Antilles, Hobbie, and Wes Janson, none of whom are strong in the Force.
The Republic Commando series does put a heavy focus on the titular clone commandos and on the Mandalorian lifestyle as it was presented in the old Expanded Universe as well, but while the troopers are the primary focus, there are Jedi and Jedi-related main characters present in each novel (since it is a Clone Wars series, one would expect there to be) but they share equal or lesser focus than the commandos depending on the story (in part because there are only two main Jedi characters and at least four non-Jedi major characters seeing most of the action). These novels did a lot to develop the clones as individual human beings before the CGI Clone Wars TV show did the same.
There are also multiple stories and books that focus on the bounty hunters (the Bounty Hunter Wars trilogy, for example, and the Tales of the Bounty Hunters short story collection), the Rebellion and New Republic (such as the Tales from the New Republic short story collection), and the Empire (such as the Tales from the Empire short story collection). Some stories in these collections do feature Force-sensitive characters but the majority do not. The Tales from the Mos Eisley Cantina and Tales from Jabba's Palace both feature Force-sensitive characters, including Obi-Wan Kenobi in the former and Luke Skywalker in both as well as others, but for the most part only very briefly.
