Don't you mean the stations from the east coast are easier for you to hear? They are much closer to Finland. For some reason there are very few pirates from the west coast anyway, they are nearly all in the east. There are only three pirates known or believed to be west of the Rocky Mountains (most stations are in the Northeast USA), they are:
Radio Pushka-https://www.hfunderground.com/wiki/index.php/Radio_Pushka
YHWH-https://www.hfunderground.com/wiki/index.php/YHWH
B Side Radio-https://www.hfunderground.com/wiki/index.php/B_Side_Radio
I also forgot to mention YHWH as one of the stations that has been busted since 1998. He was busted from Inyokern, California in 2014. He received a warning letter, which he ignored (he still broadcasts on 7475 AM). Both YHWH and Radio Pushka are strange stations (particularly YHWH).
Those pages are on the HFU Wiki. I highly suggest you check it out if you haven't already, there is a lot of information there about pirate radio in North America.
If you want, I can send you a list of the different actual stations on the air and the names they use (it would be mostly me guessing, but it gives you an idea of who is who). Let me know if you want that, I will have to send it as a a personal message.
I could do an interview if you want (if that is what your asking). Send me a personal message if you want to work out the details.
I have a few pictures of transmitters used by North American pirates.
1. Xiegu G90
This is the kind of thing most North American pirates use. Anything SSB is almost always amateur radio equipment modified to transmit outside of the amateur bands. One Dog Radio sent an SSTV last night that said he was using this particular transmitter. This is not a photo of one used by a pirate, but it is the exact same model.
2. Homebrew "Grenade" Transmitter-https://www.hfunderground.com/wiki/index.php/Grenade
Some stations that use AM mode use home made transmitters like this one. Power is typically about 10-20 watts. These are easily recognizable because the only crystals you can obtain for them are many decades and have drifted to unusual frequencies (e.g. 6924.48 kHz). Captain Morgan Shortwave (and others) use these transmitters.
3. Heathkit DX-60
People who prefer only the best sound often use modified antique amateur radio transmitters such as this one. Radio Olah claims to use this particular model with modifications (the audio filter has been disabled so the frequency response is greater than the 6 kHz voice filter). They produce an AM signal and this particular model produces 90 watts. Again, this is a picture from the internet.
4. Another homemade transmitter
I got this QSL card picture from the HFU Wiki. I do not know about this design, but it looks to be a low power crystal controlled transmitter (similar to the grenade transmitter).