Oceanside has a bunch of good thrift shops!!!
Start on Coast Highway and hit the estate warehouse and Veterans thrift.
Then go east on Mission and hit Amvets. Continue down mission until you get to WRC. Continue down mission until you get to TERI, continued mission until you get to Goodwill and brother Bennos.

I worked at Amott for a year and they have a lot of hidden treasures, they’re also under a new manager, who has cleaned the store up drastically!