Anyone that plays have any advice on what a good strategy is from Round 16 on?

I have all the starting position spots filled and 6 starting pitchers, but no relievers yet.

NL only - continuing league btw.

Who is still available?

In deep leagues, late, I like to snap up a multi-position guy or two to throw around during April rainouts and off days and then eventually drop them for emerging save guys.

Pudge, Blake DeWitt, Jeff Baker, Jerry Hairston, Raul Ibanez, Ben Francisco, Michael Morse, Fukudome, All CIN catchers, Clint Barmes, Renteria, Johnny Gomes, Fred Lewis, Ryan Doumit, Chris Snyder, Lyle Overbay, Skip Schumaker, Ronny Cedeno, Matt Diaz, Gerardo Parra, Xavier Nady, Rod barajas, Orlando hudson, Todd helton, Casey Blake, Ryan Ludwick, Freddy Sanchez, MIke Fontenot, Pat Burrell, Aaron Rowand ... pretty much all the SP is gone and most the closers are gone.

I would suggest Pat Burrel (lit it up with the giants later in the season)
Michael Morse and Ryan Doumit as well.
Morse=home rum power
Doumit=solid outfielder potential catcher eligibility

Johnny Gomes and Orlando Hudson are nice players.

I got Hudson - mainly to handcuff my other 2B pick of Espinosa from the Nats. I think Morse will be next, but I need to build a bullpen at some point.