Raid boss for each level raid. Please share.

Level 4 Venusaur (couldn't beat it, it suggested 17 players, but only 3 players joined the battle)
Level 2 Muk (no Raid Passes, uh)

L1 Quilava, Bayleef - around 4-5k CP...easily beaten (solo) by Vaporeon and Flareon respectively
L2 Weezing - 11k CP... can be beaten solo with 2-3 high DPS pokemon

Has anyone tried soloing a L3 raid boss?

L3 arcanine FB/crunch 3 players went down fast probably could have soloed it

L1: bayleef, croconow, magikarp
L2: muk, weezing, electabuzz
L3: arcanine, vaporeon
L4: charizard, blastoise, rhydon

L3 Jolteon - took it down with just one other person

So, I've heard raid battles are only happening at sponsored Pokéstops, which would explain why there have been 0 here in Manchester, UK.

Is this true? (lv32, am high enough for them to appaear)

L2 muk by myself.
L4 lapras was fun, there was a whole bunch of us and we took it pretty quickly.
L3 arcanine, lots again, took easily.
Be careful though, due to the excitement I bought 2 raid passes in 1 day as I spun only first one. Worth the 200 coins tho I finally got muk YAY

Lv2 Muk solod No problem. Barely made it through one mon.
Lv4 Snorlax Timed out. Could have finished it off with 3 people if we had another 45 seconds. 5 trainers, maybe 4 with optimal attackers.

Alakazam and Charizard were also on the map@lv4