This doesn't seem to have been mentioned yet, but Kobo's
Buy 1 Get 1 Free sale in Canada & the US (expiring today, Jan 11th), looks like it's completely composed of Diversion Books titles, some of whose backlist romance reprints you may have enjoyed.
Anyway, if you were looking to get effectively 50% off the regular prices (stacks with the VIP member discount for the extra 10% off the base price before B1G1F), there's a whole bunch of romance & chick-lit titles mostly at the $3 USD mark (before discount, so $1.50 per after), with a handful of them at just 99 cents, and some above $4.
Authors include the late Olivia Goldsmith, and some old school-looking authors like Sherrill Bodine, Lisa Bingham, Patricia Bray, Joyce Brandon, Anita Mills, Sara Orwig, Elizabeth Thornton, Samantha Harte, Rosanne Bittner, Katherine Kingsley and several others whose introductory 1st-in-series freebies we've gotten for their 80s/90s reprint books which you may want to follow up on if you liked their writing or just recognize their names as someone you wanted to try.
Linkage for the lot under the Romance category, auto-sorted by price, if you're interested.