Poppered wraps the most reliable are Motherease Airflow and Weenotions for us
If she's out weeing everything I recommend Easy Peasy Hemp Boosters
they'll need a few washes to get up to absorbency but are usable after 1 prewash (should be at full absorbency after 12 washes as it's hemp)
They're super slim and you can pop them inbetween nappy and wrap...
Do you want pretty nappies or practical ones?
Generally AIOs aren't very good for heavy wetters whereas fitted nappies are much better plus they can be boosted easier.
How old is she?