BizziGrowin
I'm using the momcozy and finding it really comfortable - compared to a baby Bjorn we had with my daughter which I hated it. If you Google it you might find a sling library near you where you can go try some on with her in and usually hire for a few weeks too - so I'd go there and get advice and try before you buy!
I use the ergobaby aerloom and like it. I got it half price though when they had a sale on. Otherwise they're quite pricey!
Izmi carrier, very light weight and not bulky There’s a Facebook group Babywearing UK where you can get very helpful advice based on your little ones weight, height and also your needs. You can also post a pic of you wearing the carrier for a fit check on the position and safety for you both
Ergo baby 360 xx