This paper presents a simple method to rank georeference candidates to optimally support the workflow of a citizen science web application for toponym annotation in historical texts. We implement the general idea of efficient crowdsourcing based on human and artificial intelligence working hand in hand. For named entity recognition, we apply recent neural pretraining-based NER tagger methods. For named entity linking to geographical knowledge bases, we report on georeference ranking experiments testing the hypothesis that textual proximity indicates geographic proximity. Simulation results with online reranking that immediately integrates user verification show further improvements.