bastrah

Small version with 2 different filters ~40€, big version with 4 different filters ~80€. All come without any kind of carry case / pouch. A bit expensive and lacking for that price tbh

The 2 pair of IEMs I use by far the most are my Blessing 2: Dusk and the Galaxy Buds 2 Pro (for convenience).

Galaxy Watch 4. I don’t like Samsung but I wanted WearOS 3 so yeah…

Honestly, not a lot of people in rented apartments can hear music that loud to “feel” the bass. If I did my neighbors would literally kill me.

One of the best cheap (non-custom) options is the Alpine MusicSafe Pro (~25€).
If you wanna go for a custom hearing protection you’re quickly into 3 figures. Here in Germany there are some vendors for custom stuff where you could get some “no name” custom or some brand stuff like the Alpine PartyPlug Custom for ~200€.
But with all custom stuff the price heavily depends on what exactly you want, from which brand and where you are ordering it.

In general I would recommend getting the cheap non-custom option, see if it works for you and if not you can still cash out for some custom ones. 25€ is not that big of an investment compared to the price of a custom set.