Contribution “elenrimbë” by Sámo Collarwa

The sequence -nr- doesn’t seem to be allowed in Quenya. In the name elen + rina → Elerrína we see an assimilation -nr- > -rr-, in the names Elerondo, Elerosse perhaps EL- with vocalic extension, I‘d suggest you use either of those approaches.

The double-r would be best, I think. It adds a slight amount of emphasis which makes speaking it generally more pleasant.