I don't have any go to blends - as I smoke something different everyday. I highly recommend any tobacco blends from Russ Oulette (Hearth & Home Series), Blends by Steve Books (Rich's) or Jack Peterson's (Sterling/1776) all of them can be purchased on-line - come in bulk and you buy whatever amount you want.
If you want to try a sample of something call or email them - I have found Russ Oulette's Pipesandcigars.com and Jack Peterson's Sterling to be very generous - offering great customer service, prompt delivery and excellent tobaccos. This is why I buy from them both constantly. Rich's lost Steve Books not too long ago so Bill, the manager, is holding down the fort. The blends are all outstanding but expensive & no samples are available - so you you just have to take a shot and hope for the best.