If you have an ‘enhance’ function on your amp that can help bring out the very top end, very nice on fretless. There are also ‘Harmonic Enhancer’ pedals (DOD used to do one and the Boss LMB3 too) - careful though they can add some noise but fine live
That and a touch of reverb, definitely. Sometimes Chorus can take some of the beef out of the harmonics but does sound great, in the studio.