Recommend a small CD Player

Can't help feeling you're somewhat missing the point, you should be ripping your cds to some networked storage and playing them from there. I've got loads of cds, but I haven't owned a CD player for years.

Instead of spending money on CD player buy a cheap $125 NAS drive and have every cd always available at your fingertips.

I might be "missing the point" but I would still like the option of slapping on a CD when I'm not streaming from Google Play.

Don't have the time to rip my collection (over 400) to a network drive.

So any suggestions please?

A cheap bluray player

I agree, with Bluray, though a DVD player if available may be even cheaper. And both usually have a smaller footprint on the depth side than a typical CD player.

For either BD or DVD, look out for available socket types on it so you aren't caught out on then having to look for hard to find cables that can connect it to the Connect Amp.

I've just bought a new CD player- I have about 600 audiobooks that are on CD and whilst they have been ripped to iTunes, if I loaded them to Sonos, I'd go massively beyond the 65,000 track limit. And I also have some very lovely CD box sets that are well worth playing. So I don't think it is a question of "missing the point". I now have a completely integrated system of CD, vinyl, MP3 and Internet radio.
Unfortunately, I couldn't find a mini CD player that would on connect to my Connect and had to go with something larger.

My experience has been that many new users are adamant about retaining the capability of playing CD's. No amount of discussion will sway them from this path. However, beyond kicking the tires on day one, the CD player is never used again.

Be careful about purchasing a Blue-ray player for this purpose because it may not provide analog output.

Good luck finding one in working condition, but the only CDP I've ever really liked is one of the first, made by Phillips and sold under their Magnavox brand here in the US. I still use it on occasion. Nothing beats a manual flip top, which is faster than a tray and never, ever jams.

Living in Engkand, there is a company called Cambridge Audio. Have just purchased one of their excellent CD players. Great quality.