I am definitely biased towards the Akbolto Prime, but then again I have a sick riven for it.
The three you mentioned are good too, but as for Fortuna secondary kitguns, afaik its either projectile (with travel time albeit pretty fast) or beam weapons (with limited range).
As for incarnons, another two besides Lex and Vasto that fits ur criteria that I can think of are the Lato Vandal and Zylok Prime.