Hi @Maaike,
your question is a bit off topic in this Fuji camera forum and I moved it to the general discussion section. You could take a look at our Sony forum https://www.sonyalphaforum.com/, and ask there, too.
You could take a look at the X-E3, too. The rangefinder style is more similar to to the X100 than the X-T30's style. If you want the flexibility and the Fuji film modes, you can rule out 1. and 3.