Canonical sword using db characters are pretty much
Yamucha, murasaki, yajirobe, gohan, trunks, and dabura
Of those, the only ones that wielded it with significant style or skill would be murasaki, yajirobe, and trunks
Yajirobes definitely has a lock on being the one with the most developed style, but trunks has more skill overall.
Honestly, garlic jrs henchmen in dead zone are probably the most skilled sword fighters in the greater DBZ universe.