Lutheranism is typically pretty contained and keeps a low profile. Much of that is the legacy of the 2 world wars and how bad it got to be to be German. If the Dutch had been the Monster Nazis trying to conquer the world, the Dutch Reformed would have similarly gone scarce and low key.
I almost joined the Missouri Synod back in college and still have a high respect for them. Given the choice between a meh to progressive PCA and a confessional Missouri synod, I'd go with the Missouri Synod even though I'd not be able to commune. Much like how Groucho Marx once said that he'd never join a club that'd have him as a member, you'd never want to go to a Lutheran church that would let a confessional Calvinist commune. That's a good sign they're confessionally mushy if they do.
This is a church the next time I'm in Fredericksburg I'd likely attend since the PCA 40 miles away looks weak and the "reformed baptist" church in town looks to have gone straight fundy Baptist.
https://resurrectionfbg.org/. This is likely a VERY good church based on the website and who they affiliate with. Issues Etc is serious confessional Lutheran talk radio, and churches don't advertise it lightly.
With sermons, a lot of times they're shorter and just focused on the law/gospel hermeneutic. Typically, they'll be based on one of the lectionary readings for the day. What I've gathered is that a lot of the more expositional stuff we'd associate with a good sermon would come out in a pastor-led Bible class before/after the service. That'd also be where you'd be more likely to hear 3rd use of the law applications.
I would say that the 1517 group that's pretty prominent and kind of being the New Calvinists for Lutherans has similar problems to the Young Restless Reformed, including in some dodgy or more antimonian directions. Classical Lutherans like Gene Edward Veith or John Warwick Montgomery are NOT. Rod Rosenbladt's kind of right on the edge but not over it and is generally sound. Many of the latter's disciples do verge into a more antinomian stream.
Re: introspection, there's a whole contingent of them that are the Pietists who are every bit as angsty and introspective as the Methodists can ever be. Pietism is very much the precursor to and inspiration for Methodist piety that would later hit the British Isles and that's very prominent in Evangelicalism.
Re: the Christian life, the KEY thing with Lutherans, is whether and how much they talk about vocation. That's one of the
key hinges, A Lutheran that's got a robust doctrine of vocation will generally be on the sound side in matters of personal sanctification, even if they don't talk about it in the same way vis a vis the commandments. Luther's Freedom of a Christian or Gene Veith's books on God at Work and Loving the Lord with All Your Mind are good examples.
ELCA = Worse PCUSA
NALC = ECO to EPC (I think - it's new and a breakoff from the ELCA)
LCMS ranges from EPC without women pastors and few overt Lutheran trappings to conservative OPC, The church I linked above would be analogous to a fairly conservative OPC, but probably not the strictest.
WELS ranges from ultraconservative OPC to Micropresbyterian if Microspresby had 400K members.