I can't seem to find scissors that make a clean cut. What do you guys use?

Cheap $2 scissors from Wal-Mart

Cheapo Rapala superline scissors from Walmart work just fine for me.
I end up buying a new $5 pair every 3-4 years.

I have a couple in my boat, I use the bass pro braid scissors https://www.basspro.com/shop/en/bass-pro-shops-4-braided-line-scissors
and other set is the Fiskar 5" they are my favorite https://www.amazon.com/Fiskars-5-Inch-Softgrip-Scissors/dp/B000B7MUE6

Definitely prefer the fiskars, I have a separate one in my kayak also. Been using them for 2 years. The BPS are backups and work decent.

Another vote for the Boomerang Tool.

A little pair of Fiskar scissors. Work great.

Best I've found especially on smaller braid.
https://www.outdoorproshop.com/Pitbull-Tackle-Cutter-p/pbt-cutter.htm

Gerber Neatfreak Scissors

Electrician scissors

The best I have found are Fiskars RazorEdge™ Micro-Tip® Easy Action™ Shears (6"). They are only 6" long with a cutting length of a little bit over 1" and they lock closed to protect the edge.
Shears

+1 on the Rapala

Yep. These too. I have Fiskar razors, these Rapala cheapo scissors, two pairs of scissors left by co-anglers, and a lighter works in a pinch. Box cutters work.

My opinion, and obviously those of my co anglers...since they forgot them, cheap scissors work great and stuff gets lost fishing. So cheaper the better.

I use the little Cudas also. They work really well.