Depends on what you are looking for and how thick your wallet is...
Boyd's & one of the Bell & Carlson synthetics are the easy least expensive average quality choices.
McMillans and Manners are better & mucho higher $$ choices in synthetics, and offer broader choices in TAC and Precision Shooting stocks, although McM's has a wide spectrum of hunting stocks too.
Richards Microfit, Fajen and others fill in the gap for "moderately" 90% finished wood stocks. Serenghetti's makes my heart go PittyPat, but I don't see the logic on spending more for a pretty peice of wood, or a McM's custom fill than I did for the rifle.
Let me win a 7-8 Lottery or inherit "well" and I'll have a different perspective I'm sure.
JMHO & YMMV
Remember Aesops Fables outcome of the "Scorpion & and the Frog's" crossing the river when they get to other side
TooTaToo...We have MET the Enemy...and He is US !!... Pogo
Those who fail to learn from History are doomed to repeat it...George Santayana