Here are the ones that I personally know about; Yoga and Walk off the pounds and water aerobics. My friend takes ballet, tap and jazz. There is walking outside in a group. These are all free and at the rec centers (There are upwards of 20)
For regular fitness machines and weights go to the regional rec centers. (there are a number of those) There is a fee for the machines and weights.
Then there are people who bike and those who play tennis and pickleball (free) and I won't include golf but it does move you around but you have to pay for that torture.
Someone else is going to fill in or explain better.
Welcome to you!