I recommend everyone an EU brand called Optase[1] for their suite of dry eye drops and related products! Best preservative free eyedrops I've tried (I've tried everything extensively) and its in a bottle! :D

They have a MGD Drop (red packaging) which is liquid/oily and an Intense drop (purple packaging) that is nice and thick.

You can find them rarely at retail pharmacies as they are still expanding in the US but you can order them on Amazon.