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.
The Map of Time series by Felix J. Palma
The fact that it takes H.G. Wells Time Machine and puts it in a darker perspective. I never could finish the series because finding it becomes difficult and I don’t have money to burn
Speaking of the time machine. Did you read the time ships by Stephen baxter it’s a sequel to the time machine