Amalie Car Rental - like Paradise they also meet you curbside at STT, arrival and departure, with a gorgeous jeep.  They did marina drop and pick-up for us as well last month.  If you want a car for next month book it NOW.  St. Thomas is very busy - seems everyone is traveling there now due to travel restrictions elsewhere - there have been many reports of individuals not being able to secure vehicle reservations.  We book at least 6 months in advance when traveling to STT/STJ.