Trying to sell at local events would be best place to start.
The Northants art exhibition do several events throughout year & I believe the one at Lamport hall early in year you can have 3 pieces up for no commission.
I met a photographer at last event, he takes general street photography, he sells for £40 a pop & always sells some, he prints em at boots to sort of A3 size & puts em in Ikea frames & the best bit... he dosent have a camera, does it all with iphone!
This is the guy
Northants & Rutland Open Studios: Explore the vibrant artistic community of Northamptonshire and Rutland through a captivating showcase of diverse artwork, immersive studio visits, and engaging exhibitions.
nros.co.uk