My pick would have to be the A Whole Nother Story trilogy, in which (spoiler warning) you can only travel back in time. But because time is in a loop of sorts, if you go before the beginning of time, you will be at the end of time. From there you can go back to any time you want to. And time paradoxes cannot be produced. Plus, your memories from the previous timeline exist as well as the memories from the new one.
Slaughterhouse V by Vonnegut and Kindred by Butler are probably my two favorites. Probably because they sort of intertwine the time travel with implicit social commentary on trauma/PTSD and the legacy of plantation slavery. Most writers don’t really deal with such topics when discussing time travel, as if there’s absolutely no social overlap.