Making the most of Indy

Hi all I (f22) just graduated college and as part of my job I travel to Indianapolis every other week and stay Monday-Friday. I only work until about 5 (sometimes 6) every night and have really been trying to find things to do once I’m off work that are engaging and meaningful… I’m not looking for just the standard oh try a restaurant etc. while I’m here I would love to get involved within the community and potentially volunteer or contribute in some way. I have had fruitless google searches so am curious if anyone who has spent more time here than me has any recommendations. I think this city is beautiful it does seem quiet especially in the realm of younger people :)