Modern? There are no great bass lines since the mid nineties 
I like this one, it’s easy and very tasty to play
https://music.youtube.com/watch?v=ha0zhK0xIVQ&si=ZYc7Bru5Do0PMVQt
You didn’t say anything about smooth jazz
https://music.youtube.com/watch?v=ij3p4wmFE0A&si=0UZNe87Add0RXkvx
Or NeoSoul The bass on this one is fun.
