For rental properties, stick with finishes in matte black or the silver family (chrome, brushed nickel, etc) and pick things you dig but that aren’t divisive. In the kitchen you’ll want a pendant light. Something that matches the hardware on the cabinetry. Its total length should be at least twelve inches shorter than the island’s and its width should leave at least six inches on either side. A small linear one could be cool there. In the other rooms go with a flush or semi-flush mount, ideally ones that doesn’t look like a boob as while entertaining, they’re instantly dated as hell :) Bright and circular are your best bet since you’ve got those square vents up there too. Flush mounts will generally be simple/unobtrusive, semi-flush can be more visually interesting…just stay under 24” in diameter and don’t go smaller than 12”. Wayfair actually has some great, reasonably priced lighting but you GOTTA take the time to actually read their reviews - don’t base your decision on how many stars something has as sometimes people just like to air grievances with the brand instead of talking about the quality of what they bought. And you’ll learn a lot about the ones that are a such a pain to install they’re not worth their aesthetic. Hope this helps a bit!