Welcome to the forum. There are a bunch of really expert flitters on this forum that can provide great advise. There is no substitute for one-on-one experiences with experienced flitters. With the Internet there is an infinite amount of info. Google you interest and there is an intense amount of data.
Since you primarily fish for trout, a reliable and somewhat inexpensive vise in the Renzetti Traveler. Another source of info are clubs and if in your area, flyfishing shows.
Give us a specific need in flitting and I think we can respond.