If you can find (eBay) an Allen MDS Expander II, it has a Celesta and other complimentary voices that would work for you. It has a Bugle which acts like a Tibia but for brass! The church where I sub at has one and I've used it to fatten up a Spanish style Trumpet located on a drawknob in the Choir. Being that this is a module for organs, the MIDI implementation allows for 4 voices to be assigned at a time (Pedal, Choir, Great, Swell). It has a large, handy volume knob for quick adjustments.
https://www.allenorgan.com/support/ownersmanuals/0330090.pdf
This unit was normally installed as a slide out drawer under the keydesk but they did make a self contained model that would sit on top of the console or elsewhere. Allen's revision of this unit is the "Ensemble". In typical Allen fashion they added a lot more voices (which sound really good) and features but kept the original voices sounding the same.
For being older technology the Expander II retains a high resale value.
Danny B.