Hall of Heliod's Generosity for putting enchantments on top that might get randomly discarded, i.e. it insures that you get the enchantment you want.
Starfield of Nyx also can be leveraged this way from discarded or removed enchantments.
The Mirari Conjecture can get back instants or sorcery that you might have cast, or been discarded randomly.
You can get a loop going with
Hall of Heliod's Generosity or
Starfield of Nyx, which seems pretty great with
Wilderness Reclamation giving you the freedom to invest mana this way.
I think you want to have at least one of every toolbox instant you might need at that moment, and mass removal is part of that.
Starstorm for creatures
Fracturing Gust for artifacts and enchantments.
Fated Retribution is expensive, but a catch all for planeswalkers as well.
Treasure Cruise seems like it should be
Dig Through Time given you can search it up.
If you're ready to go a bit deeper...
Mystic Sanctuary can be used as a once off effect like this.
Then you can also look at a number of exile land effects to get reuse.
Skybind and
Parallax Tide are enchantments that do this.
Ruin Ghost means that you can get one back each turn.
There are a number of planeswalkers that allow you to recast instants from graveyard, but
Jace, Vryn's Prodigy is the cheapest.
So yeah my suggestion is to lean a bit more enchantment focused with some of your spells to leverage
Wild Research a bit more.
Meaning ask the question "can you get the same effect from an enchantment that you get out of something that's not".
An example is you could look to replace
Wall of Blossoms and
Wall of Omens with things like
Mystic Remora,
Sylvan Library,
Eidolon of Blossoms.
Can you get mana from enchantments rather than artifact Signets?
Carpet of Flowers,
Fertile Ground,
Mana Bloom,
Trace of Abundance,
Utopia Sprawl,
Wild Growth are excellent replacements.
On that note
Stony Silence is a potent card to tutor for.
Counterbalance with
Hall of Heliod's Generosity could be alternative to
Mystic Snake for example.