You've gotten good advice-- here are a couple more choices and some info on bead and wire sizes for you. To some extent hook shape/wire thickness will affect bead sizing, but this is pretty good ballpark:

For buggers, others may disagree but I think a size 8 would be a better all around choice for trout in most places

Mustad R73-9672 3xlong 50 pack about 8 bucks

Bead size 5/32" or (4.0mm) for sizes 8-10

Bead size 3/16" (or 4.8 mm) for sizes 4-6

Nontoxic "lead substitute" wire .030" or .025"


for Nymphs yes you can use the same size hooks for both--- though I tend to tie PTNs in smaller sizes 16-20 and Gold Ribbed Hares Ears mostly in 10-16. A good choice for both to start would be a size 14.

Mustad R73-9671 (2 xlong) 50 pack about 8 bucks

Bead size 1/8" (or 3.5mm) for sizes 12-14

Bead size 7/16" (or 3.0mm) for sizes 14-16

Non toxic "lead substitute" wire .015"

Ultra wire size "Small" copper and gold for ribbing nymphs

Good luck!