Could anyone suggest good source of all fusion reactions and their cross section vs energy graphs, including ones which were ruled out for nuclear fusion reactors (i.e. including endothermic and reactions with only 1 product)?
I'm not sure if this is what you're looking for but the most widely used reference for many nuclear reaction rates in stars in Caughlan & Fowler (1988). It's not so much a paper as an enormous reference for many reactions. I've just discovered that it isn't open access yet and I'm not sure what can be done about that...
Some reaction rates have subsequently been updated and been given corrections for various effects that modify the rates inside stars. If you want a full description, you can pick up a recent stellar evolution code paper. e.g. have a look at Sections 4.4 and 4.5 of the code paper for MESA.
You can find data of all (!?) current nuclear reaction experiments in the evaluated nuclear reaction databases (ENDF)[*]. Bibliographic information can be found in the experimental nuclear reaction database (EXFOR). The databases are maintained by the cooperation of nuclear data centres worldwide in the "International Network of Nuclear Reaction Data Centres (NRDC)".
Graphs can be easily created e.g. with JANIS (Java-based Nuclear Data Information System). As an example: n-induced cross section of H-1
[*] Not to be confused with the "Evaluated Nuclear Data File" which is one of the five databases in the ENDF.