Early in the days of the OSR, blogs were a central resource for
ideas and fan-made creations, ripe pickings for overworked GMs. Many
of the early blogs are still online including Strange Stones, a
self-described "nerdy RPG blog" [0]. From 2010-2015, the blog
author, Venomous Pao, posted lists of pre-generated LL AEC
characters and adventuring parties [1], then collected them in a
single PDF, available to anyone for free [2].

The rogues gallery is as one would expect – lists of pre-generated
characters but with lots of flavor, including unique head gear. The
adventuring parties are a nice touch, useful for wandering
encounters. Although some of the adventuring parties are of higher
level, all of the pre-generated characters are 1st level. There are
over 100 characters representing all of the LL AEC classes, as well
as multi-classes, and 12 adventuring parties. It really is a great
resource.

[0]: http://web.archive.org/web/20250305045434/https://www.strangestones.com/
[1]: http://web.archive.org/web/20250215223634/https://www.strangestones.com/llaec-rogues-gallery/
[2]: gopher://gopher.smolderingwizard.com/9/rpg/player_and_gm_resources/ll-aec-rogues-gallery.pdf