I'm not sure who these mythical elite bullpen arms people keep talking about if Romano isn't one of them. Short of Felix Bautista (who has blown 6 saves FYI)
All closers blow saves at a 10-15% rate (even Mo). Jordan Romano's career save percentage is identical to Mo's.
If you are looking for a guy with elite swing and miss, Richards is top 5 in k/9 (97 percentile in whiff rate and 99 percentile in chase rate) .
If you are looking for elite velo, Hicks is it.
Sure, we don't have someone who is elite at everything, but I'm not sure that exists.