Check if you can find mounting specs for the tyres.

Here for example: Maxxis MA-511 - Ultra High Performance

You can see a 235 and 245 are OK on a 18x9.5 wheel, but different manufactures will have different specifications.

Not a fan of Rota brand (made in the Philippines), but the Titans will look good if they are kept clean.

I'd say if money isn't a issue go for the first option as you might need extra for other adjustments later, I found out the hard way, had to buy spacers, extended ARP studs, extended lug nuts, coil overs, pumped arches etc to fit 9" +45 wheels (of course this was a different car to yours, a bugeye WRX)

If you want to play it safe or don't have the extra to play with maybe go the 2nd option.