looks to me like you need to move the lamps to the end tables. maybe run a power cord under the sofa so you can get a lamp on that end table. Otherwise I would maybe add an arch lamp behind the sofa. the lamps you have seem pretty big I would look for reading lamps.

I really like the lamp on the bottom right! Thank you!

Yes, you can use reading lamps and place them on the end tables. In our store we have these models