I have been very happy with the diagonals that I own and I also like the MT505 8" Long Nose Dipped Grip Pliers (USA),
For Long Nose, I am not discussing my old Craftsman USA made that you can no longer purchase, but I own some of them.
My Snap-On have the most comfortable handles and are the only ones I own that do not have wire cutters. I do not often cut wire with my needle nose pliers, but sometimes I do. (96ACF) 240 grams. A little stiff, as are the ChannelLocks, but much nicer than when I purchased them; they really wore in well.
My Tekton pliers are my only pair made in Taiwan, all my others are made in the USA. These work fine, but have the smallest and least comfortable handle (because of size). They are not awful to use and if I did not say anything, you would probably not have given it a thought unless you spend all your time using Snap-On; and then everything feels not as nice probably. (
https://www.tekton.com/8-inch-long-nose-pliers-pgf10008) 175 grams. Very easy to manipulate with one hand.
I own a couple pairs of Channellock 317 long nose pliers. These are the only ones whose tips do not touch, so, if you want to grab something very thin (like a piece of paper), don't bother. The handle is about the same as the Snap-on for length, but with just a dip rather than a more comfortable handle. I have not had any complaints with them, which is why I own more than one pair. 240 grams. A little stiff like the Snap-On.
My Milwaukee MT505 set is the heaviest set at 265 grams. (
https://www.milwaukeetool.com/Products/MT505). I find them comfortable in my hand. They touch only at the tip as do all the others except for the ChannelLock. Probably the easiest to manipulate with one hand. This adds a Reaming Head good for conduit from 1/2" to 1" and in the back end they have a fish tape puller (you squeeze the handles down and it can grip fish tape). This is the only set that is tether ready. I have only tried the Dipped, not the Comfort version (MT555). I have considered replacing my ChannelLocks with these.
As a side note, I really like their USA made screwdrivers as well. I have a set of 13 of them. I had to assemble these individually since they do not sell a 13 piece set of which I am aware. One of the few people who sell an ECX bit.