Last year I ended up with around 200 tomato plants,don’t ask ! I always give friends etc plenty, I take some to sewing club,freely given out, some go to WI & I ask for a small amount of money that goes to funds, some go to the trading store at the garden club, some get given away at the allotments. But last year after all that I still had loads so I advertised them on Facebook market place & sold a load & recouped a bit of my expenses,seeds, compost etc. I was really surprised how many people bought them.
There’s also church fetes etc or even carboot sales if you wanted to go down that route