Probably a package around jost and zadorov, which is, you know, the avalanche special
A Jost/Zadorov return gets sneered at quite a bit because of the regularity that it gets suggested in trade discussions, but the truth is that neither player is necessarily available due to them being bad players, but rather, simply because Colorado has such strong depth and they are the logical players to be moved - particularly in Zadorov's case due to the upcoming Expansion Draft. Jost was also rumoured to be available by credible sources and saw his ice time go up (getting showcased) at the deadline which lends credence to his availability.
Including Jost and Zadorov in trade proposals is actually not too indifferent from last year when Avs fans regularly included Barrie and Kerfoot in trade proposals. Like with the Barrie/Kerfoot trade Avs fans are often quite accurate with trade suggestions, which isn't surprising given how that we have a GM who is logical and rather predictable in the roster moves that he makes.
In any case, regarding Weegar I could definitely see a Zadorov and Jost package working for Florida. They likely need to replace Haula as 2C/3C, and Jost would be a cost-effective and younger replacement for him. On D they have Ekblad/Stralman/Priskie on the right, and so it would make sense to balance things out a bit by acquiring a player more naturally suited to playing on the left. That's particularly relevant if they manage to find a way to move Yandle who is declining considerably.
For what it's worth Zadorov also already has a house in Miami, and Florida has numerous Russians on the team so it would even be a good fit outside of hockey. Those factors, combined with the low state income tax, would make it likely that Zadorov would be willing to sign a reasonable long-term deal in Florida if they acquired him as an RFA in a trade.
Zadorov and Jost each carry a trade value of around a 2nd+3rd, so I'd guess that Florida would send a pick and/or prospect back to Colorado if they wanted both players, with Colorado's own 2020 3rd being an obvious candidate.