I'm a broke college student, so I'm posting this to a large audience that has more guitars and experience than I do. I have a 2018 Squier CV Tele as my only electric guitar. Besides standard tuning, at it's lowest, I will go a whole step down for some tunings, but will also play slide in Open G...
I have my square neck Dobro and a couple of lap steels tuned to the standard Dobro tuning, GBDGBD. Today I tuned a standard guitar to that tuning and kinda liked it. Tension seemed OK with a .042 for the low G, but I bought a couple of .038s today so I can leave one or two guitars in this...
Here's a list of all the tunings that he used on his records. He was a bit unconventional to say the least. A complete list of tunings on each song is available here: https://allthingschriswhitley.com/2013/06/30/a-chart-of-chris-whitleys-tunings/:
A D A C# E A
A D A D E A
A E A E A B
A# D#...