You're gonna need to start by replacing the headlight assembly with something with a projector assembly. Even high output bulbs kinda suck with a reflector, and there's a fair chance your lenses are yellowing and roughed up too. I know you'd prefer not to do it, but it really is going to make the largest difference in useful light output.

The cheap $200 chinese ones are fine for this, just add a layer of silicone to them yourself and it ought to avoid fogging issues. Some of those models are a drop in replacement for the 03-05. Otherwise it's an expensive retrofit and those are a whole other can of worms.

Once you're using a projector, pick your preferred bulbs from this thread and enjoy being able to see fine.
3rd Gen HID vs LED vs Halogen H11 projector headlights | Tacoma World