AdS3 solutions in massive IIA with small N = (4, 0) supersymmetry

YL and AR are partially supported by the Spanish government grant PGC2018-096894-B-100 and by the Principado de Asturias through the grant FC-GRUPIN- IDI/2018/000174. NTM is funded by the Italian Ministry of Education, Universities and Research under the Prin project “Non Perturbative Aspects of Gauge Theories and Strings” (2015MP2CX4) and INFN. C.N. is Wolfson Research Merit Fellow of the Royal Society. AR is supported by CONACyT- Mexico scholarship. We would like to acknowledge the Mainz Institute for Theoretical Physics (MITP) of the DFG Cluster of Excellence PRISMA+ (Project ID 39083149) for its hospitality and partial support during the development of this work. YL and AR would also like to thank the Theory Unit at CERN for its hospitality and partial support during the completion of this work