As title states but no harem, no romance if the protagonist is Male if its female, anything is fine. something with more than 10 chapters would be nice...
slow life at the frontier....dunno if its isekai or not..... BTW i read the title of the thread as "isekai lowlife"
Let's see, maybe something like: Tensei Shite Inaka de Slowlife wo Okuritai Ex-Hero Candidate Mezametara Chikashitsu!? ~Tensei Shoujo no Yume no Saki~ Isekai Yururi Kikou Isekai Izakaya Nobu The Man Picked up by the Gods (Reboot) Tensei Reijou wa Shomin no Aji ni Uete Iru Kuma Kuma Kuma Bear Parallel World Pharmacy
3 good rrl novels Necrotourists (is technically an isekai) } slice of life stuff's with no romance Kuro's days } Data Dragon Danika, not an isekai but still felt like you might enjoy