Apple HomePods now Support ARC Via Apple TV. Vinyl & cassette plus almost any source. Digital or Analog.
Live TV, Blu-ray, Games Consoles, Turntables, Cassette players, VHS, DVD & more work.
Almost all recent TV’s pass whatever you plug in, to an Arc enabled speaker. This function has been added to the new 4K Apple TV when connected wirelessly to Two HomePods.
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I forgot to mention you could use an analogue to HDMI adapter if you have no Analogue inputs on your TV like this one that I haven’t tried
Moukey Stereo Mini Phono Turntable Preamp