I liked and still like:

Tulsi Gabbard
Andrew Yang
Michael Bennet

On the other side I like:

Rand Paul
Ron DeSantis
Bill Weld
John Kasich

People I heard in person and didn't like:

Steve Bullock
Julian Castro
Joe Biden
Deval Patrick
Amy Klobuchar
Corey Booker

People I heard in person and liked at the time but no longer do:

Pete Buttigieg - couldn't stand how in debates he was smirking at other people
Elizabeth Warren - shouldn't have turned on Bernie Sanders
Bernie Sanders - too old now and hasn't accomplished anything since he ran

Never on the other side:

Donald Trump

I voted third party last time and would do so again if I don't like anyone running in the major parties.