If you are in Orange County in California there is the SCMAS club. They used to meet monthly I'm not sure what the schedule is post pandemic.
You have some great resources in the OC. In Costa Mesa there is Garrett's Acropolis. Steve Garrett is a great guy and just a wealth on information on coral care and coral husbandry. He's been running an outdoor coral propagation farm for over 20 years and is really concerned with propagation.
The other place to check out is Ali's Amazing Reefs in the city of Orange. This is different than any other fish store you have been to. It's more like a lounge with Fish Tanks. There are less than 20 tanks in the store. And only one wall really has stuff for sell. The other tanks are a collection of things he likes. You may see spawning Orange Spot File Fish, you may seen an anemone you didn't even know existed, or a coral that people whispered about 20 years ago. Ali has some of the best kept aquariums I have ever seen. His water clarity and the health of the life within his care is on the same level of a Public Aquarium - with better results.
Ali doesn't sell much. He's a wealth of information. He can definitely guide you and assist you in getting started the right way. He sells equipment that works and that he uses in the shop. But he isn't a salesman. If you come and talk to him for 2 hours he could care less if you buy something or not. He just cares about the hobby. Having a store is just a way for him to hang with his fish friends without inviting them into his home - so it appears
Dave B