June 17 was the deadline for candidates to file for Florida primaries, or for independent candidates to pay their filing fees for the general election, for state and local office. The Secretary of State has posted a candidate list here. The deadline for congress was in May.
The only minor parties with any nominees for federal or state office are Libertarian, Green, and Constitution. The People’s Party has a candidate for county office in Pasco County, and is fighting in federal court to place her on the People’s Party primary ballot. The problem is a law that says no one can file in a primary who has not been a member of that party for a full year. The People’s Party wasn’t ballot-qualified that long ago, and therefore it was impossible for it to have had any members.
Libertarians are running for Governor, U.S. Senator, and two U.S. House races. Greens are running for a State Senate seat and a State House seat. The Constitution Party has a candidate for State House. UPDATE: see this article about the Green Party candidate for State Senate.