true AN [Air Force - Navy] is a 37° flare angle but tighter thread class that industrial JIC [joint industrial council] which is also a 37° flare angle..
explanation here;
AN 37° Flare vs Industrial 37° Flare Fittings: What's the Difference?
SAE [society of automotive engineers] is typically a 45° flare angle and share thread pitches with JIC on smaller sizes EXCEPT -6 and -12 which consequently will not even thread together..
JIC is more common in steel, high pressure hydraulic applications but very plentiful in local fitting houses.. also not as pretty as typical anodized aluminum AN fittings if bling is your thing..
see chart here [scroll down];
FLUID PORT AND CONNECTOR Identification Guide
dash sizes are the number of 1/16 of an inch, for example -4 = 1/4", -8 = 1/2", etc.
true AN is not recommended for mating with JIC so one, the other, or SAE should be used consistently, at least where two fittings mate..
automotive application manufacturers like Earls and Russell will likely have everything for common automotive applications however also likely more expensive that their industrial counterparts.. advantage though is ease of ordering to specific application, small quantities, and user friendly vendors like summit, jegs, etc.
one of the inverted flare to ANM [AN male or same callout in JIC would be JICM] you need might be something like this;
Russell AN to Inverted Flare Fittings 640381
corresponding ANF [female hose ends, typically swivels] should be used to mate.. re-usable style hose ends are preferred where you can disassemble and replace the hose from damage, to change length, etc. and re-use the hose end.. these types are more expensive that industrial style crimp fittings but of course, they are re-usable and crimps of course are not..
hose end swivel fittings typically come in STR straight, 45°, 90°.. some manufactures also offer in between offset angles and even negative to full 180° angle fittings for special reach without additional adapters.. and some manufactures even offer L long 90° and LL extra long 90° where two fitting are in line with each other and one has to reach over the other..
the hose end swivel is the ideal location for the angled fitting over the adapter flare, inverted flare, npt, etc. due to the ability to orient or point the hose the specific direction desired while not having to adjust hard fitting engagement that may not tighten in the direction you need.. most adapters will also be more readily available in straight anyways..
pro-tip; invest in [or borrow] the re-usable fitting assembly tools for the sizes you plan to make up.. they aid in proper assembly, prevent hose flappers, and reduce chances of joint failure.. and simply make assembly much easier, especially for a novice though not required if you're paying attention..
pro-tip; tightly wrap steel braid hose with electrical tape where you plan to cut to minimize fraying which makes assembly more difficult and less reliable..
so once you've identified all of your component fitting callouts, you should be able to mail order just about everything you'll need to make professional quality, custom hose assemblies right in your own garage..
good luck!