don't know about arxiv in particular, but latex based documents readily give you that style. https://www.overleaf.com/latex/templates/tagged/arxiv
I'd check which uni/department works in your field/works on something similar to you, and contact them. you might get a prof to have a student do a bachelor or master's thesis on your topic, or even have a doctoral student do a study.
or maybe some citizen science projects?
Ich mach das genauso dann noch aufs stövchen. meistens gieße ich die Blätter noch 2-3 auf, wird dann dünner, klar, aber bin eben faul.