How did I handle the chip shortage?

– I tried to find various parts which had equivalent parts available with similar features, a pin-compatible footprint so that if one is not available I could use another.
– Another strategy I used was I bought the IC 1st and only then designed the board using that IC so that I know, that, I will be able to manufacture and test the board after my design is complete.
– During this process, I found various pin-compatible ICs and thought of sharing them here so that others can take advantage. It is not a big list but still, maybe someone could find it useful.