Try velcro zip ties. They are reuseable. For example: https://www.amazon.com/velcro-zip-ties/s?k=velcro+zip+ties

First thing, pull out any unneeded cables. The old red/white/yellow set from your VCR that you don’t use any more? Yank it out.

My TV is fixed to the wall.

I use a plastic wire channel that comes with an adhesive backing, which I painted the same color as the wall to pass all my cables behind the TV. It goes up to the bottom of the TV and behind the TV cabinet.

I bought a cable management box for my power bar, so that I can put the unsightly extra length of power cables and wall warts out of sight, I try to regroup all these cables together to make one single path of cable, all tied together with velcro.

For the I/O (HDMI, etc), I plug them all, put them in the wire channel and pull the extra length so that I can coil them behind the TV and attach them to the TV rack so nothing hangs out.

Velcro ties are your friend here.

I got some extra advice OP. Power cables create electromagnetic resistance called flux. This interferes with poorly insulated data cables.

Also, don’t coil power cables. When a power cable is coiled the strength and range of flux multiplies. If you run a data cable through the center of a coil any previously effective insulation will be rendered moot.

TL;DR Power cables and data cables aren’t friends, keep them away from each other.

Cakes, fork and knife and an appetite.

Cables, I have gotten a larg amount of velcro cable ties to consolidate. As far as where they get down to the floor, I use some sleeving to just tidy it all up.

Ok so what I do is I grab all the cords as tightly as I can against my body, then roll duct tape around it. Make a couple passes to really squeeze down the size. Also get a bright color tape so you can see the cords later. I use neon orange