Check out “The Bluffs” or other units off of Rancho Del Oro Dr and Oceanside Blvd.
IMO they are overpriced(but fall within your specified range). I believe that area is primed to be the next Carmel Valley with Genentech and about 25 other buildings under construction going up within 1/4 mile. Also, city is adding the sprinter station that will connect further inland and to the coastal transit system just a stones throw from The Bluffs.. also pepper in the possibility of the stadium in Oceanside… That area IMO is the best location to buy not only in North County but in all of San Diego… fit that with your own analysis of the area and your timing choices.
I plan on leaving Cali since my industry affords me high geographic flexibility so that area isn’t one I’m targeting personally..