I would troll rapalas or lil cleos on a 3-way swivel with a bottom bouncer.
I cant remember the guys name but thers a few youtube videos. Try searching 'bottom bouncing lakers algonquin' in youtube.
YES frozen minnows are ok to use, I do frozen salted minnows everywhere I go as it is illegal to transport live minnows from one lake to another.
Google 'Algonquin stocking list' and you will find many walk-in lakes along the highway 60 corridor.
Also, Jeffsmap.com shows which species are in each lake.
Good luck!!