I have a pair of Ultimate Support stands, which will last a lifetime or two, which I use to support some heavy-duty powered monitors with 8-inch woofers. I recommend them but they’re probably overkill for a little HomePod. (My HomePod sits on a side table in my bedroom, on a coaster.)
An option I just learned about recently is a wall mount that keeps the HomePod out of the way. Intriguing.
For sound isolation (and better sound quality) you might also want to consider isolation pads. The best ones can be expensive, but they don’t have to be; I bought these (currently unavailable) a couple of years ago for my Audioengine iMac monitors to attenuate vibrations to my desk and firm up the sound - they cost under $15, I think. I don’t yet use pads with my HomePod but I will probably end up doing so.