Yes, ViaBTC accelerator and paid transactions accelerators. ViaBTC is free, but has the limit of 100 transactions per hour, so you have to set your clock. Other paid accelerators charge you a fee for rebroadcasting the transaction, few are moderate, rest are insane.
Me to suggest the same. Viabtc have been providing the service of making the confirmation faster. This has been quite good to use as it has got limitations and the service is legit compared to other such services that get paid and the outcome too is not that perfect as viabtc.