Direct feeding for direct drive extruder = no filament guide (on frame) = no unnecessary friction.
I use this together with https://www.thingiverse.com/thing:2070272
It is not designed to use with stock Anet A8 LCD (the hole is good handling point :-) ).
M8 rod, 3 nuts and washers (you need this anyway, if you have the universal spool adapter).

Anet

A8

No

No

0.2 mm

Honeycomb 25%

Use between 3 to 5 perimeters. The thing is stiff anough even for 2 kg spool.
Concentric solid fill.
Rectilinear top and bottom laer.

Design is optimised with Fusion 360 static load simulation.