What lens should I buy for a Canon 550d to shoot portait, group photos + nature shots

[MrBuzzford]

Hi,

I'm new on here and would like your advice.

I own a Canon 550d and would like a lens that is suitable for taking portrait, couple and small group photos, like if I was walking around the guests at a wedding or event. Would that same lens also be good if I wanted to take nature shots like along a canal, beach or wooded area?

My budget is £300. If there are good lenses that are more expensive I would consider buying a second hand lens rather than brand new.

I currently own the kit lenses that were supplied - 18-55mm (broke) and 75-300mm plus the Canon EF 50mm f/1.8 II (great picture but not wide enough)

Any help is most appreciated.

Thank you

Andy