Terminals, connectors, spades, slide on etc

[saturated]

I'm trying to get organized so I can connect devices to speakers and stuff

I ordered some connectors and these are a little bit big

You cannot view this attachment.

You cannot view this attachment.

Then I tried these and they were REALLY TIGHT

You cannot view this attachment.

You cannot view this attachment.

I thought maybe they were too narrow and I needed something in between but after further review it looks like the red ones are wide enough maybe the rolled part is tight

Meanwhile what type of pliers are you using to crimp these guys 

I'd like a nice tidy secure connection but it's not some needed like for military 🎖� 🪖 aircraft