First, consider upgrading the microphone you’re using. While the microphone that is integrated into your PC or laptop will get the job done, sometimes the off-the-shelf solution isn’t up to the task at hand, especially if it is centrally located and multiple speakers (people, not audio outputs) are spread throughout the room.
There are two types of microphones well-suited for a podcast: dynamic and condenser. What’s the difference? In short, dynamic microphones tend to eliminate background noise well, and therefore are good options for voice recording. Condenser microphones typically deliver a smoother output but might come at a higher price point.
You might also wish to consider the addition of a reflection shield. This is a sound absorption device that can be mounted directly to an external microphone for refined audio output. If you tend to conduct a lot of remote business, you may find that this quick fix makes a world of difference in terms of how you are heard and understood by those on the other end of your remote meeting.
With that said, the microphone is but one consideration for your space. Adding some soft design elements like a throw rug or wall covering can help to overcome acoustic issues.