I had a Goldtone Irish tenor banjo for a while, along with a Warren Ellis electric tenor guitar and an Ozark acoustic tenor guitar. I experimented with a few tunings on these instruments and settled on D G B E - the equivalent to the top four strings of a regular guitar, also known as Chicago tuning, and the same tuning most often used on a baritone ukulele. The chords in this tuning were very straightforward for my clumsy fingers to learn and play.
I no longer have these instruments as I rekindled my relationship with my six string guitars which had been neglected, as well as my tenor ukuleles (G-C-E-A), and I reached the limit of my brain's capacity to learn and compartmentalise three different sets of chords without getting confused.