They don't exist today, but Bible scholars and archaeologists almost universally agree they were near the Dead Sea and the Jordan Valley where the current Kingdom of Jordan lies. References:
- https://centerforisrael.com/article/where-was-sodom-gomorrah/
- https://www.ucg.org/learn/beyond-today-magazine/beyond-today-magazine-january-february-2022/location-sodom-what-does
- https://www.biblicalarchaeology.org/daily/biblical-sites-places/biblical-archaeology-sites/where-is-sodom/
- https://biblearchaeology.org/research/patriarchal-era/2364-the-discovery-of-the-sin-cities-of-sodom-and-gomorrah