Full network sample (blue) and the F25 sample of calibrator hosts (red) in comparison. The gray region marks the maximal extent of the F25 sample. The green stars mark hosts with TRGB distances available. The left hand side shows an ordered scatterplot of the distance moduli, while the right hand side shows the corresponding histogram. Note that while F25 calibrates 24 SN Ia, these are located in only 20 hosts (hence only 20 points are marked red). The 11 additional hosts marked with green stars would correspond to potentially 10 additional SNe Ia (with the 11th host NGC 1399 calibrating SBF, not SNe Ia). One additional SN Ia (2021pit) is present in an already F25-calibrated host (N5643) but not within the CSP sample. In total that makes 24+10+1 = 35 calibrators that are available for SNe Ia calibrated through TRGB. Even within the sample of the CSP I&II supernovae only, there would still be 4 additional CSPI&II calibrators to be gained using TRGB observations of nearby hosts within the range of the F25 sample—with 7 additional TRGB-calibratable SNe Ia not present within the CSP I&II samples. The 4 “missing” TRGB-F25 calibrators are 2012ht in NGC 3447, 1998aq in NGC 3982, 1992A in NGC 1380, and ASAS14-lp in NGC 4666.