Find a Belgian brewery whose beer you enjoy, then use a yeast strain that is supposedly from that brewery. Most of the commercial yeast strains give flavors that are at least in the ballpark of the brewery that they are rumored to come from. Like Denny said, each Belgian strain is pretty unique in its flavor profile, so it's hard to recommend one as "the best one".
I like WLP570 in pale beers. It's supposedly Duvel, and tastes damn close to me. My favorite is Wyeast Canadian/Belgian (Unibroue), especially in dark styles, but it is a PC strain that was last released in 2020.