When it comes to enhancing your home studio setup, I've had great experiences with the Universal Audio Apollo Twin interface, which offers stellar AD/DA conversion and quality preamps. It's versatile and integrates beautifully with UAD's plugins, which are a big plus if you're looking for high-quality processing options. For microphones, you can't go wrong with the Shure SM7B for vocals; it's a classic for a reason and handles a range of vocal styles with ease. For acoustic instruments, the Audio-Technica AT4050 is a versatile condenser mic that offers a clean, natural sound.
In terms of studio monitors, I personally love the Yamaha HS series. They're known for their accuracy and don't color the sound too much, which makes them excellent for mixing. The HS8s are great if your room size and budget allow, but the smaller HS5s can also do the trick in a tighter space.
As for brands, I find that Rode and Focusrite offer durable gear that performs well without breaking the bank, making them a solid choice if you're watching your budget. Ultimately, the best setup will depend on your specific needs and space, but these options are a good starting point based on common industry standards. Happy recording!