We've talked over the dreaded sterotype that if you play mando, you should do blue grass. Mando is great for blues!
And you know what? Banjo can work on blues too, but for me, it better be bare handed: frailed or claw hammered - no Scruggs style, no finger picks no flat picks.
And harps (harmonicas) are great for blues. I think there are quite a few harp players here in the blues section. I think another sterotype is that blues harmonica has to be cross harp style- the low end of the harp and note bending.
I am getting to be a decent harp player and I play STRAIGHT harp. I play mostly melody or blues up melody. I play the same key harp as the song is played in. (Cross harp players blow a C harp for a G song and an A harp for an E song).
Straight harp works for me. I like it for blues and Gospel. Lots of heart. And on that track, playing with a harp harness while playing mando or guitar is sure fun when you get it right.
Play those blues. Overcome those sterotypes with good songs done well. Jack