How to download and setup fias-symfony
Open terminal and run command
                                            git clone https://github.com/liquetsoft/fias-symfony.git
                                        
                                        git clone is used to create a copy or clone of fias-symfony repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with fias-symfony https://github.com/liquetsoft/fias-symfony/archive/master.zip
Or simply clone fias-symfony with SSH
                                            [email protected]:liquetsoft/fias-symfony.git                                    
                                    If you have some problems with fias-symfony
You may open issue on fias-symfony support forum (system) here: https://github.com/liquetsoft/fias-symfony/issuesSimilar to fias-symfony repositories
Here you may see fias-symfony alternatives and analogs
symfony grav ilios EasyAdminBundle NelmioApiDocBundle SensioFrameworkExtraBundle LexikJWTAuthenticationBundle VichUploaderBundle DoctrineMigrationsBundle framework-bundle LiipImagineBundle FOSElasticaBundle SncRedisBundle KnpMenuBundle twig-bundle swiftmailer-bundle security-bundle web-profiler-bundle NelmioCorsBundle CraueFormFlowBundle SensioGeneratorBundle web-server-bundle LiipFunctionalTestBundle debug-bundle web-publisher panther http-foundation laravel-zero pug-symfony slugify