Got this plant back in the summer , no name but loved it because of the crazy root growth and leaves were super healthy , kinda reminds me of fall colors and the flower spread is quite nice.
It looks like Odcdm. Mesmeric Melody 'Mauna Loa'. I have one and it blooms like crazy. Mine just finished with 4 spikes (lasts for months) and is now putting out a new spike on one of the previously bloomed pbs.
There are a few hybrids that look close, but my bet is oncidium catatante, of which there are also a few well known clones.
I would rule out Odcdm. Mesmeric Melody 'Mauna Loa' because that hybrid has more of a skinnier look overall and the petals are usually fully saturated with the copper/orange tone.