Perusing Stellafane's pages is likely as good as it gets for both a broad and thorough introduction.
As with many things, it is an art of trade offs.
Aperture rules until the work to set up means it sits unused.
The objects you mention are bright (and small) and can be seen in anything, including nothing, which fills department stores with small scopes known to amateur astronomers as "Hobby Killers".
So immerse yourself a bit, pick up some language and basics, then find a local club to try before you buy, clubs or generous members may have a loaners
scopes so you can figure out where you want to be on the what you can see v.s how much effort you can put in scale.
Aperture rules until the work to set up means it sits unused.
The objects you mention are bright (and small) and can be seen in anything, including nothing, which fills department stores with small scopes known to amateur astronomers as "Hobby Killers".
So immerse yourself a bit, pick up some language and basics, then find a local club to try before you buy, clubs or generous members may have a loaners scopes so you can figure out where you want to be on the what you can see v.s how much effort you can put in scale.
cheers