Slimeasier is a simple QoL mod, allowing you to get slime balls easier.
There's a small chance to drop a Sticky Leaf from any leaves, from any trees. Then you have to put the Sticky Leaf on a campfire to get Slime Scraps.
By putting 4x Slime Scraps in a crafting table (shapelessly), you're getting your desired Slime Ball.
You can join me on my server Marwinekk's mods to see how my mods are being developed. Also, if you like my modding style, you can suggest what next QoL mod I could do for you!
If you wish to use this in a modpack, feel free to do so and let me know if you do!
Also, check out my other similar QoL mods:
Compressed Units - https://www.curseforge.com/minecraft/mc-mods/compressed-units