The Landcruiser or V8 Tundra coils are a "safe" choice, and are proven to work at 18-20 psi boost, plus their connectors are readily available through Toyota. For me, their only disadvantage is cost. There are a number of other coils that probably will work, too, and are a lot less money.
The coils for the Honda S2000 and some models of the Accord are the right length and will bolt right in, but the connectors aren't available for them. You'll have to hit the wrecking yards for them.
Other possibilities are the Porsche Cayenne Turbo, Audi TT, etc. I have sets of these coils that I hope to try in the near future. Their lengths are OK, and they're 1/3 the price of the Denso coils, plus their connectors are readily available. Packaging may be an issue for these, however, as their holddowns don't match up well for the 1UZ.
If you want to go CDI, then the Honda CBR coils like CJSupra is running are the way to go and they're plentiful on eBay.