Arenella rhymes with:
campanella, danella, fontanella, janella, manella, panella, salmonella, vanella, zanella, agnella, brunella, campanella, cannella, citronella, cornela, danella, donella, farinella, fenella, finella, fontanella, gialanella, gonnella, janella, junella, manella, mannella, mennella, minella, nela, nella, ornella, panella, parnella, pennella, pernella, petronella, prunella, rinella, salmonella, spinella, vanella, zanella
Arenella sounds like:
airmail, armel, armilla, arnal, arnall, arnell, arnelle