THe first one you show was the MiG I-320.
The I-320 was a two-seater with a side by side canopy. The model looks superficially like the I-320, but I suspect that the model makers would not have known about the I-320 at the time the model was designed.
Mikoyan/Gurevich I-320 - fighter
The Lavochkin La-15 'Fantail' looks like it was influenced by the Ta 183. It was designed as competition to the MiG-15.
They also made a MiG-21 with a scaled-down Tu-144 wing sort of like the British did for the Concorde.
The MiG-21L Analog, survives at Monino; not the best photo, but it was hard to try and get the wing shape from ground level - the Tu-144 in the background. The British converted the Fairey Delta 2 in which Peter Twiss became the first pilot to fly 'faster than the sun' at over 1,000 mph, with the Concorde's 'ogival' wing shape; it became the BAC.221.
Another interesting MiG survivor is the Ye-152M, which was built to a a heavy fighter requirement, but MiG abandoned its development in favour of the MiG-25.
The 'Ye-166' on its nose is fictional. They do some weird stuff at Monino; the third prototype of the MiG-23 interceptor is painted as the first prototype and wears its designation number '32I', whereas the actual MiG-23 first prototype is painted simply grey with the same number on its nose.
Because of its relatively brief period in Soviet service and the advent of Mach 2 supersonic fighters, we tend to overlook just how advanced the MiG-19 was when it was unveiled. MiG took quite a risk with its design; its highly swept wing at nearly 60 degrees sweep back, powered ailerons at the tip - the F-100's control surfaces were moved further inboard because of fears of wing twisting at high speeds, and its big wing fence straightening out the air flow, a characteristic of MiG's earlier jet fighters. Its small engines were also quite novel; combined, their frontal area was not much bigger than the single centrifugal flow engines the Russians received from the British. It was also fitted with 30 mm cannon and could carry four air-to-air missiles - it was no shrinking violet. The Chinese recognised its virtues and it became a big influence on subsequent fighter designs in that country.
The Poles were handed MiG-19s by the Russians, rather than licence building them as they had done with previous fighters, as security against high flying reconnaissance Canberras, which regularly penetrated Eastern Bloc territory during the 60s, although the MiG-19 was not able to get anywhere near the Canberras' operating altitude, despite being faster than them. The Poles didn't like the '19, preferring the MiG-21, which they received in large numbers. The MiG-19 was overtaken in production and service, of course, by MiG's own '21, which was an elegantly simple machine by comparison, as the attraction of a Mach 2 interceptor was greater.