Natalia is gorgeous! But it can sound a bit exotic in the UK, if that would bother you? (as it's very popular in Russia/ parts of Eastern Europe).
Jessica and Lauren are nice (particularly the Shakespearean Jessica) but as others have mentioned, they perhaps feel a little dated due to their popularity 20-30 years ago.
I'd also suggest the less popular Thalia/Talia, Nerissa, Jessamine, and Lara/Larissa as choices - all lovely.