Banknote Hunting!

I have been banknote hunting for about two years. My best finds...
$10 North African Yellow Seal
$100 1934 series with lime green seal
$50 2009 star note ( two consecutive )
$20 ( one series if seven consecutive SNs and another series of three consecutive ) 2009 star notes
Numerous red seal $2 notes
Numerous "small portrait" $20, $50, and $100 notes.

my finds. all were bought for face value.

Got these from the bank.

The red seals do have character, imo it looks a bit chinese since china uses red seals as signatures as suppose to written signatures.

I had to downsize my old collection when rent ate through my savings a few years ago, but I found quite a few neat bills while working retail for nearly 4 years:

Series '36 $1 with a blue seal
Series '63 $10 star note (nice and crisp) spent on a lotto scratch-off that didn't win
Over $800 in star notes (about 75 individual bills, mostly $1)
A few neat serial numbers (best was a $20 with serial number 00000205 and another $20 serial number 26666668)
Over $400 in small portrait $20 (all from one customer who cashed in her rainy day fund from the 80s)

I managed to hang on to a few of the better notes, but I never really found collecting bills to be very worthwile.

Interesting finds!!

Is there a website that details what kind of notes to look for by denomination? Experienced coin hunter here, with limited note hunting experience past the obvious ones