Welcome!

Choice of race pretty much just comes down to which you like the best - stat differences between each race are actually extremely minor and really don't have any noticeable effect on gameplay, so it's really it's appearance that is usually the deciding factor. Lore wise Eorzea is a multiracial melting pot anyway so any race can easily fit in starting in any city (so if you want to start as a roegadyn in Gridania for instance, it's completely fine ).

And yes, miqo'te is a very popular race choice - I play as a miqo'te Seeker of the Sun because I love cats in real life so it's natural for me. :3 Lore wise, a lot of miqo'te actually can be found in Gridania, especially from the Keepers of the Moon clan, but there are a few Seekers of the Sun there too.

Duskwight elezen are actually a minority in Gridania lore wise believe it or not, and have a bad reputation amongst the townspeople (a lot of the bandits and poachers found in the Black Shroud are duskwight).

Anyway, go with whatever race you like - with the Fantasia potion even if you don't end up liking your choice you can actually change your character's race and gender later on anyway without sacrificing your progress in the game.