Murder Uncorked is the first in the Wine Lover's series by by Michele Scott. It is free right now at Kindle and Kobo US.
Kindle US:
https://www.amazon.com/Murder-Uncork...dp/B019ARFW42/
Kobo US:
https://www.kobo.com/us/en/ebook/murder-uncorked-2
And if you like this one, the fourth and sixth in the series are only $0.99:
A Vintage Murder, #4, not on sale at Kobo US
Kindle US:
https://www.amazon.com/Vintage-Murde...dp/B019HJMH5K/
A Toast to Murder, #6
Kindle US:
https://www.amazon.com/Toast-Murder-...dp/B019HJ34PW/
Kobo US (coupon/VIPable):
https://www.kobo.com/us/en/ebook/a-toast-to-murder-2
And finally, not sure if we count "CreateSpace" as a non-self-publisher ???, but
SYKM seems to, and I'll go with
SYKM for now. In which case, it's worth noting that a box set of all three titles in Scott's Michaela Bancroft series (
Saddled with Trouble,
Death Reins In,
Tacked to Death) is a US Kindle Countdown deal at $0.99 for about 5 3/4 more days.
The Michaela Bancroft Trilogy:
https://www.amazon.com/dp/B005KN6V32/