ALOS2 mosaic geolocation

Hi all, I have an ALOS2 mosaic tile that has geolocation issues. It’s shifted from Landsat, Sentinel1 and ALOS2 fine beam. Are there any routines in SNAP that I can use to co-register the mosaic to my fine beam granule? Thank you in advance!

how large is the shift? Maybe you can demonstrate with a screenshot.

Where did you get the ALOS-2 data and at which product level?
http://en.alos-pasco.com/product/product1.html

Is it one of those?
www.eorc.jaxa.jp/ALOS/en/palsar_fnf/fnf_index.htm