Song like that is well-suited for solo guitar & voice.

Not much too it but it's a lot of fun to play and sing with.

...I make sure I'm doing songs that I'm 99 9% sure nobody else was planning to do, or did already.
This song would fit that bill.
I go more for the camaraderie than the performing. I've done over 2,000 paid gigs in my life, so I don't have a burning need like I once did.
Last open mic night, I dud "Everybody Wants To Rule The World", "Don't Dream It's Over", and a 12 string solo instrumental piece. (Not titled)
If I go Wednesday afer next, I'm going to do jazz guitar version of "Am I Blue", "Time After Time", and a 6 string instrumental piece. Pretty sure I'm not stepping on any toes with those choices.
BTW: The way I'm playing that old jazz standard, there are 27 distinctly different chords. So, I'm busy on that one.

If I was at your open mic night I'd be cheering you on. Beautiful song.

27 chord changes, wow. That's a lot to retain.

Today I'm working on Back to Black by Amy Winehouse

I also want to say, as someone like yourself who is accomplished on piano and guitar I'll bet you could do an awesome cover of the slow version of Neil Sedaka's Breaking Up Is Hard To Do.

I would jazz it up substantially. On piano, I almost never play chords with under 4 tones, often 5. Just my background.
Big on 13th & half-diminished chords.
BTW: my version of Am I Blue is done in bossa nova rhythm. Makes it more fun to sing.