The Topology of Strings as Building Blacks of the Universe and Black Holes of different sizes.

 https://www.researchgate.net/publication/362441186_The_Topology_of_Strings_as_Building_Blocks_of_the_Universe

There are two different black holes; Gravitational Driven BHs and Monopole interference string knot black holes, like Ball Lightning, Sunspots (all  star spots)  and Sprites, Comets, Tadpoles etc.