Posted too soon - if you are looking more for things to go and do out of the house, local Facebook groups can be good for this (it you ignore the angry posts about dog shit, racists having a go at the travelling community, etc). I am going soon to see a tribute band at a local social club for example which I found out about on the Facebook group, and have seen talks on there too, car shows fetes and so on.
I am also thinking of getting my husband and I passes for our local cinema - for about £12 a month you get a ticket to any film - I thought I might try it for three months and see if we got the use of it.
I've also booked for us to go away to watch a snooker tournament soon (belated Valentine's treat), and later in the year we have got a package to see a West End show with hotel night included - not much over £100 each, and a nice central hotel, seems quite reasonable. (I should add that, while not loaded, we are fortunately in a position to spend a little bit on entertainment at the weekends now - we have a camper van so don't tend to spend loads on one big family holiday but can take inexpensive trips throughout the year.
We are thinking of going to watch the local (fairly low league) football club soon, just to try it out - husband does support a big club but it's miles away, so a smaller local one would also give us some interest. Might wait till the weather is a bit warmer though!
With previous partners I have: gone to art galleries and museums in London and Birmingham mainly; had National Trust membership and gone to their properties/events they organise; gone to massive out of town garden centres for a look round; eaten out a lot more; gone birdwatching.
There is lots to do but you do have to find things that spark BOTH of your interests I think. Conversely, that might mean one of you going OUT of your comfort zone to start with, to find things you both love!
Good luck and let us know how you get on!