Shouldn't Izuku have finished this way faster with Avalon healing him? Or did Saber not lend it to him for some reason? Also, why summon a Rider instead of a Caster to teach Izuku? Shouldn't Saber at least teach him reinforcement and/or prana burst? Izuku should have an insane amount of mana to be able to handle multiple servants, and the grail itself should give him nigh infinite prana, like they did for Illya and Sakura...

Great and interesting story

Me: Alright I can't wait to see more servants!

*swipes to next chapter*
.
.
.
.
.
.
.

*nothing happens*

GODDAMN IT ALL!

Looks like I've been beaten to the punch.
I've been working on an 'Izuku can summon Heroic Spirits' fanfic for a while now (almost a year!), though it isn't ready for release yet.
Have to admit, not a fan of the list here. Then again, I've never played ANY of the Fate/ games, let alone Grand Order, and have only watched five of the anime (Zero, Unlimited Blade Works, Carnival Phantasm, Apocrypha, and Extra: Last Encore). The only heroes I know anything about other than those who appeared in these five series are Leonidas and Lancer Arturia.
All in all, a great fic so far, and I can't wait for more.

Please update it’s a really cool story

The list of heroes are pretty good. If I were to make one change however, it would to be switch Kiyohime for Asterios.

1) Asterios is a sad, fluffy boi in need of our love. (Also because he is an outcast of society due to unfortunate circumstances, he can learn and teach Izuku who shares many thing in common)
2) Based on Strength itself, Asterios is actually stronger than Hercules in terms of parameter. That's not including his skills Monstrous Strength and Natural Demon which boost his Strength.
3) Asterios's NP, Chaos Labyrinth, is actually pretty OP and useful for Heroic works. Danger of damaging surrounding properties or innocent civilians? Drag the villain into Labyrinth. Facing a super power Villain? Drag them to Labyrinth and imprison them until backup arrives. While people would think that you can simply break through the Labyrinth with a simple string, it is wrong. Lore-wise, Ariadne's Thread was made of a pretty special material which I doubt is obtainable in current age.
4) We gotta show some love for 1-star units ;_;

What would be epic is for Izuku to somehow summon Nana Shimura as a Servant. Especially during Toshinori's climactic battle with All for One.

Cette histoire est incroyable et extrêmement intéressante je suis très impatiente pour la suite

Why no Elizabeth or Mordred? Can we get Fran in the story then

Hope Jeanne Alter is gonna make an appearance in the future.

I love this

ok it's really good fate story and i cannot wait for the next chapter, but for your servant list i kinda want change the berserker not that i hate Kiyohime but i think Beawulf would be a really good one because he can be stronger with and Achilles can have a spar partner but if you still choose Kiyohime then i suggest you put a Ruler Martha as Izuku trainer especially with Martha fighting style that would be awesome, but still keep Edmond Because him and Martha would have a good Synchro with Martha as for the rest i have no problem keep the good work.

I like the list Will there be more extra classes like saver, ruler and shielder for ruler it can be Sherlock Holmes

Your team selection is impressive! There is only one change I'd suggest (please feel free to ignore if it contradicts any plans you have). For the Beserker Servant, maybe have Izuku summon Nightingale. Reason being is that she's a somewhat sane Beserker, and with how much Izuku gets hurt, having a nurse on the team sounds like a good idea. Even thought of a scene to summon her: after Izuku destroys the Zero pointer robot (and destroys his body simultaneously), the Grail in him reacts and summons the best Servant to heal him.

That aside, I'm curious to how the Servants are getting into UA. Will they be scene as students, or treated as part of Izuku's Quirk? Can't wait to see more!

PS Let me know if you are looking for a Beta.

Interesting chapter and even more interesting Servant choices, I almost never see Medea Lily being used and the same can be said for Ereshkigal. Can't wait to see where you'll take this, please keep up the good work!