Not sure I will be able to help, as I don't like a sweet beer... I like a crisp bitter finish. Also, difficult to advise without knowing what's available near you. As with all good real ale pubs, the stock changes daily... sometimes every few hours depending on how many people are drinking a particular beer. (I know in our local, if any of the favourites come on, the cask can be drained in 2 hours!)
At a very basic level, the darker beers tend to be sweeter/maltier, so might be to your taste? If you ever see a beer pouring called Chew Chew from Fallen Brewery, I'd suggest you try that. I don't know anyone who doesn't like that one! Even I will take one from time to time if I fancy something different. It's got a salted caramel taste to it, and it's very nice.
For a citrusy beer that doesn't have a bitter hoppy punch in the mouth, I would suggest Salopian Lemon Dream... it's very easy to drink, with a subtle, rather than sharp, lemon edge.
I hate to use the patronising cliché of 'you're a woman, so you will only drink fruity beers' that many barmen assign to a woman who comes into a pub saying 'I don't like beer, so can you recommend something I might like?' (I hear it a lot!), but... Saltaire make a couple of lovely and easily quaffable beers you could try... Blackberry Cascade, and Elderflower Blonde. They're really beautiful, but might not be quite sweet enough for you. Worth a try anyway... any decent real ale pub will let you try a couple of sips before you buy.
Oh, and if you're in a real ale pub, they might also have 1 or 2 ciders and/or a perry... a sweet perry is pure gorgeous, so keep an eye out for these, and ask for a taste!