Logarithm of bolometric luminosity as a function of the logarithm of BH mass. For the SOFI z ∼ 2 targets (This work, blue data points), the L_bol are estimated from Hα, while the M_BH are estimated using Eq. (6) of Woo et al. (2015) which uses the dispersion (σ) and Hα luminosity as inputs. The typical error of log L_bol is shown as the blue vertical error bar on the lower right of the panel. For comparison, we show the sample of z = 1.5–2.5 with L_bol < 47 as orange points (Suh et al. 2020) and high-luminosity quasars from the WISSH survey as green points (Bischetti et al. 2021). The grey dashed lines pertain to the loci of the same Eddington ratio: λ_Edd = 0.01, 0.1, 1, and 10. For the WISSH quasars, we assume a BH mass uncertainty of ∼0.47 dex following the prescription for the 1σ relative uncertainty of single-epoch BH mass estimates from Vestergaard & Peterson (2006). However, we do not include the systematic uncertainties for the absolute calibration of RM masses.