Connecticut is holding a special State Senate election on February 26 in the Fifth District, which is centered on West Hartford. The Libertarian Party nominee is Jeff Przech, and he has petitioned to be on the ballot as a Libertarian, although his petition hasn’t been verified yet.
The Independent Party, which is ballot-qualified in that district, has also nominated Przech, so Przech will probably be on the ballot twice, and voters can choose to vote for him either as a Libertarian or as an Independent Party nominee. See this story. In 2018 practically all of the Independent Party nominees for federal and state office were also Republican nominees.