You could consider names with similar sounds or a similar feeling, but it wouldn't be a direct translation. Examples might draw inspiration from elements like:
* Lios: Meaning "fort" or "ringfort" - Could be a starting point for a related name.
* Saoirse: Meaning "freedom" - shares the "s" sound.
Ultimately, creating an Irish equivalent of "Loaise" would involve choosing elements with similar sounds or a desired meaning and crafting a new name.