Build you blog on interior design and home decor. Interest and demand in the field are expected to remain strong and give you an ideal platform for showcasing creative ideas as well as making it a full-fledged business.
You can cover topics ranging from room makeovers and furniture selection to DIY projects and budget-friendly home-decor hacks. You can dive into design styles, color choices, seasonal decor guides etc. This idea can be executed by homeowners, renters, and design pros working in the field. Eventually, your blog can do partnerships with furniture and home-decor retailers, interior design companies etc. As always, affiliate marketing can be around promoting home decor items, furniture, tools and whatnot.
Blog Name Idea: HomeDecorGuides.com