What's the best way to meet new people of a similar age (mid 20s) to make new friends?

Loneliness is a big problem for me, I thankfully live with my family but I am out of work at the moment. I have joined some local men's mental health groups, and they are nice, but typically much older than me. What are some ways to get to know others?

Interests for context: hiking, camping, conservation(outside work), reading, cinema, rock music, video games