I'll start: Vulfpeck and Tool

The Weeknd and Cattle Decapitation

Run the Jewels and Alt-J

Ella Fitzgerald and The Clash

System of a Down and Indigo Girls

Supergrass and Childish Gambino.

Streetlight Manifesto and The Fall of Troy

Meshuggah & L'Impératrice

(live performance quality is a huge reason why they're in my tops)

Wu Tang Clan and Wilco

The Dead South and Amon Amarth

The Chameleons and Supertramp

Alice in Chains and Frank Sinatra

Slayer and The Beatles

The Beatles and Deerhoof

Big|Brave and Bonobo

The Beards and Breaking Benjamin

NIN and Cosmo Sheldrake

Love and Com Truise

Tool and Muse.

Seen both live many times!

Will Wood and the Tapeworms

Electric Wizard

I'll do two recent ones for me: Hail The Sun and Ginger Root.

Public Enemy and Orbital

Tool
Susanne Sundfør

Vashti Bunyan

Death Grips

Dillinger Four and Princess Chelsea

Lovin' Spoonful and Poison Girls

NoFX and Emilie Simon

Bluetech and Drab Majesty.

Childish Gambino & Carly Rae Jepsen

Snarky Puppy and TWRP

dillinger escape plan and prefab sprout. not sure you can get anymore different

Animals as Leaders

Allen Stone

Tiny victories

Stroke 9

So many to pick from. Red Handed Denial and Savlonic

Let's go with: Decapitated & Bon Iver

Mental Cruelty and Open Mike Eagle

I'll pick three: Bad Religion, The Dreadnoughts, and Days 'n Daze.

In some ways very similar - they're all "punk". However, Bad Religion has its roots in early 80s hardcore punk and has, with some notable exceptions like the song Cease (and the album Into the Unknown, which is hilariously bad and they wish the world would forget), maintained their "wall of guitars" and "oozin' awws" sound throughout their 40-ish years as a band. Also, their lyrical content generally is about societal and global issues.

The Dreadnoughts are a cider punk band that, at times is a bit like a Canadian incarnation of The Pogues or Gogol Bordello. They feature accordion in most of their songs, have done an acoustic album and a WWI concept album, and have a great catalog of acapella and accompanied shanties. They very much embrace folk music, especially polka. Lyrically, their most frequent themes involve sailors during the age of sail and shenanigans that they personally got up to.

Days 'n Daze is, what I'd say, straight-up folk-punk. All acoustic instruments that are fairly busking-friendly (guitar, gutbucket, washboard, trumpet) and vocals go from pop-punky to thrash screaming. Their lyrical themes generally involve anarchism, struggles with mental health and nihilism, parties, and interpersonal conflict.

While all three are "punk", they are very different musically and lyrically.

Knower and The Northern Boys

NIN, and Ninja Sex Party.