Here's a video showing the use of parallel TP4056s to charge parallel batteries:
https://www.youtube.com/watch?v=iieSJpGcIPE
If that works, you could use 2 TP4056 modules connected in parallel charging 2 18650 cells in parallel, then use a boost converter to get the voltage up to 5V, or whatever other voltage you need. My understanding is that cells in parallel are self-balancing. It's not clear from the video how battery protection would work. Maybe you would use protected cells.