If you expect placement to be compromised, I suggest avoiding rear ports, and going with concentric drivers so that required distance for driver integration will be less challenging. As obvious as it might be to us here, keeping the speakers at the right height, and yes, not blocked by other furniture, etc., as I've seen way too many times before, is paramount.
Speakers for daughter
I was going to buy powered small speakers for my daughter's first sound system to go with A Project Debut Carbon Evolution but now she seems ok to accept an integrated amplifier from me to power speakers. Thinking about the Elac UNI-FI UB 51 or ELAC Uni-FI Slim B5 U5 after researching similar priced speakers such as the Elac Debut 2.0 B5.2, Paradigm Monitor SE Atom, Wharfedale Diamond 12.1, and Kef 150. I have not listened to any speakers yet at the price point. Any comments?