You’re lucky to live in a place where that is possible.

I am currently on three dating sites, Match as a paid member, POF and Bumble, as a free member. I am having some limited success in meeting women from the three sites, mainly with Match, as it has by far the largest membership of women my age in my area, while Bumble has a very small local membership, and POF is simply useless for the most part, lots of local members, but mostly scammers and fakes, while the few local members who are real people, are really flaky and seem to be extremely demanding and picky about who they will meet or date.

Beyond the dating sites, the main resource for me in filling my time, at least during weekday hours, is two local programs that provide college type courses for older adults, but no tests or papers, just lecture and discussion. One program is totallyl locally based, and the other is affiliated with a national program, the Osher Lifelong Learning Institute. The courses for both cost some affordable fees to register for, and I have never met anyone to date from the courses, but I've really enjoyed the intellectual stimulation and met some nice people to chat with before and after the class sessions. I doubt I will ever find anyone to date from these classes, as the women there are almost always either too old for me, or already partnered, but I will continue to attend the classes for the other benefits I mentioned.

I think it's great that you're getting out there and doing things you enjoy.

My main activity is dancing. But pretty much I know pretty everyone in the dance community and haven't run across anyone who's given me warm fuzzies. As an introvert, groups, in general, don't appeal to me. I think at this point, the only way I'm going to meet anyone is if a really good looking UPS guy comes to my door

The ice cream meetup bore unexpected fruit. I found a group with which to play Pickleball, which is something I’ve been wanting to try. The was one woman in the pickleball group that I liked instantly. So I’m hopeful our initial chemistry wasn’t a fluke.

Ever since the pandemic I've booked myself up with all kinds of activities. It really is effective in mitigating the feeling of isolation and abandonment.

Ramblers groups are good.I joined one here in Scotland when I moved to a new town and met some lovely people. Strangely they are nearly all churchgoers to I have to be careful what I say. A gentle sport like bowling is good. I joined the local club and as well as playing I find myself as unpaid assistant greenkeeper. I'm learning a lot about bowling green management.
We have an organisation in the UK called U3a (University of the third age). Most towns have groups for things like natural history , book reading a discussion etc.. Maybe there is something similar in the US ?

I'm a musician, but just for fun I go out once or twice a week and play folk/rock music with a bunch of others. Some are amateurs who only know 3 or 4 guitar chords, and some are accomplished professionals. We started out playing at the Swarthmore train station during the pandemic, but now call ourselves the Swarthmore Song Circle, and meet in various places. There is probably one in your area. Also, hiking is always popular. There are hiking groups, too.