Originally Posted by: peterncsu

So I'm looking at tips to strengthen/increse flexibility in my pinky to be able to place it on high E to make a G chord.

Consistent, repetitious practice is the effective way to improve figner strength & dexterity. But there are exercises you can do aside from just practicing the chords in order to achieve that goal.

This exercise is aimed at increasing all the fingers.

https://www.guitartricks.com/tutorial.php?input=1829

And this one specifically targets the pinky! It assumes you can already play some other basic open chords. But once you can play the open A, D & E it's a great workout for your pinky.

https://www.guitartricks.com/tutorial.php?input=1292

Hope that helps! Best of success!