Aurora Store is way too unreliable and is nearly unusable. I have been using APKMirror so far and while it is okay, it is somewhat annoying that Obtainium can not directly download from there whereas it can with APKPure. I wanted to know the security level of APKPure in comparison to APKMirror.
APK Pure works well enough. Never run into scams etc so far, and it’s my main source for apps. I use that, and Mobilism for safety-checked mods.