Help with boss battles!

Currently trying to beat the Zora region's boss as well as the Gerudo region's boss.

I feel the Gerudo is self explanitory, electricity and fire.

However im struggling with the Zora boss and don't get me started on the Goron puzzle. I haven't even gotten to the goron boss.

So if anyone has helpful tips id appreciate it! Id really like to beat all four(already beat the rito boss and gained my sage of wind helper