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.
BTW, if using only apkmirror and apkpure as sources for apks, I’d recommend apkgrabber instead of their own binary apps