What do you enjoy doing?
I used to go to a playgroup most mornings morning just to get out of the house, but my treat for afterwards would be going to a nice cafe for lunch.
Your DC might well sleep in the pushchair if they are tired from playgroup then you can eat and read the paper in peace (I am obviously thinking back to pre-smart phone days here, I don’t know if people still read papers in cafes 😊).
As there are no playgroups on at the moment it’s a bit trickier but you could have a routine where you go to a park and he gets out to crawl around.
As he gets older or is awake then he can have his own snacks in a highchair and you can sit and chat together.
If you are then able to walk home, you can kill time with that and get some exercise at the same time.
Then when you get home the baby has already done social time so you can put him
in a jumperoo or something until he is tired again and then will hopefully have a decent afternoon nap during which time you can read a book/watch tv/have a bath - or I suppose you could clean or cook it you felt like it, I was never much of a housewife at that stage so would have been likely to read for a while first.
Don’t be afraid to put the child in front of the TV either, at points. My DC were all early to talk and spoke very clearly, and sometimes seemed very knowledgeable about the world, and I genuinely think Peppa Pig contributed to this 😂
I think you should focus on things you enjoy, and there will be plenty of time to go to the zoo etc when your DC is old enough to get more out of it, but you don’t have to do that now. It’s okay to build the day around stuff you want to do, and chat with and include DC as you are doing things, don’t pressure yourself about providing stimulation, it’s there just doing every day things with you.