Trinity System/Million dollar knot i would say are the best ways to go for tying them ( i use the Million Dollar Knot myself). In terms of the actual thread, I bought Ellusionist's IET and it is incredible value for money compare to other products, you get a 400ft spool for $20, so you can use it for any thread work you want, and each loop costs pennies so you're not too worried about breaking them.