Looking for a fun destination in June

22M, based out of the east coast of United States. I start a new job in July so I wanted to plan a vacation beforehand.

Flights to Europe are outrageous and it’s sort of last minute for that. I’m considering going to a few national parks in the US with 2 of my friends. I also have not been to the West coast of the US before so that’s something to consider.

I am also open to solo traveling. I would also be very open to visiting lesser known destinations. I’m considering a 7-10 day trip and my budget is around $1500-$2000.

Any recommendations would be helpful.