You might try the Specialized Dolce line or the Trek Lexa as they both are a more relaxed geometry.
I am glad to hear that DH and I are not the only ones who get to thinking about new bikes (more often than not, acting on it) when we are socked in for the winter and can't ride outside. The trainer doesn't cure the new bike wants.
Good luck with your search,
P2
2018 Trek Silque SLR6 - Selle SMP Glider
2018 Specialized Dolce EVO Comp - Selle SMP Glider
2011 Trek Madone 5.2 WSD -Selle SMP Glider
2013 Giant TCX W - Oura 143