Hi, you can very well and esthetically get the gap closed.
1. Consult an Orthodontist, they can move your teeth using Braces/ Aligners and the gap can be closed naturally by rearrangement of your teeth positions and allignment. It can take few months.
2. By getting Ceramic Veneers or Caps/ Crowns.... treatment completed in few days.
3. By Building up the teeth using filling materials
Next Steps
Visit a nearby dentist who can guide you about the same.
Health Tips
Try for conservative approach to treatment.... save as much natural tooth as possible & long lasting results.