I would recommend a free antibody database at labome.com. For antibodies to GluR1 you can check the following link: https://www.labome.com/review/gene/human/GluR1-antibody.html. Santa Cruz Biotechnology has GluR1 antibody (Santa Cruz, sc-13152) used in western blot on mouse samples at 1:500 (fig 4) (Brai et al, Front Cell Neurosci. 2015). Also, Abcam offers GluR1 antibody (Abcam, ab31232) used in western blot on mouse samples (fig s6) (Wang et al, Nat Commun. 2016). Synaptic Systems has GluR1 antibody (SySy, 182003) used in western blot on mouse samples at 1:1000 (fig s4a) (Mignogna et al, Nat Commun. 2015). EMD Millipore has GluR1 antibody (Millipore, C3T) used in western blot on mouse samples at 1:500 (fig s3) (Bosch et al, Front Cell Neurosci. 2016). Epitomics provides GluR1 antibody (Epitomics, 3861-1) used in western blot on mouse samples at 1:1000 (fig 1) (Zhang et al, Nat Commun. 2016). Also, Cell Signaling Technology has GluR1 antibody (Cell Signaling Technology, 8084) used in western blot on mouse samples (fig 4) (Chan et al, Sci Rep. 2016). R and D Systems has GluR1 antibody (R&D System, PPS007) used in western blot on mouse samples (Nagakura et al, Eur J Pharmacol. 2013).