Plaidroom is usually reasonably priced and packages their shipments well.
T
TheMythOfSisyphus
MusicDirect (always have promos if you spend over a certain amount,; also will have big MOFI selection b/c same company overall, really good CS), AcousticSounds (home of Analogue Productions, really good CS), eBay or Discogs will have representation by a lot of independent record stores, SoundstageDirect (j/k)
Lotsa New Records available via Discogs usually on sale from smaller LRS...Also, there is always Amoeba They offer free shipping and frequently offer discount code deals.