Allen Stone

In this photo, which comes from the Stone' 2019 performance at the WFUV Public Radio, one of the pedals that can be seen in his pedalboard is the MXR Phase 95 mini phaser.

Judging by it's shape and color it is clearly a Maple Hummingbird, we can see there are no electronics to make us think about other guitars, the bridge looks exactly like this model and we can see (at 1:14) that it is a genuine Gibson because it's written on the head of the neck. Also the models under the hole and fretboard dots look like this model.

In this video of Allen playing Somebody that I used to know (https://www.youtube.com/watch?v=wE46huUs20E) we see him playing a black guitar and on the head it is written "Gibson" and on the screenshot taken we can see that on the lower part of the guitar there's the text "trini...." meaning it's a black Gibson Trini Lopez guitar, I'm not sure if it's the signature or the 2015 model... but I can assume that he is playing a signature guitar.

D'Angelico's website places Allen Stone on the list of artists who use their Premier Mini DC guitar.

Taylor's website has a demonstration for the GA5e by Allen Stone linked to the GA5e's page. In the video, he's playing his song "The Bed I Made" on Taylor's YouTube channel.

In this YouTube video, Allen can be seen using the Shure mic during the whole performance.

On his artist page on the official MESA/Boogie website, it is confirmed that Allen Stone uses a Mesa Boogie Transatlantic TA-30 Combo 1x12.