Pacemakers and ICDs are not maintenance and complications free so I think that should be your last resort. They are also much more invasive compared to catheter intervention. IMO finding an expert ablationist with lots of complex procedures under his/her belt is the way to go. Best wishes in your quest.
A fast resting heartbeat (>100 in adults) is called tachycardia. There can be a lot of causes for it. If it needs to be treated, there are several possibilities for solving it (medications, cardiac ablation, ICD, ....)
A pacemaker is used for speeding up the heart rate, so in bradycardia situations (too slow heart rate). This is not gonna help you.
An implantable defibrillator (ICD) can in some situations help against a too fast heartbeat. This device looks like a pacemaker and is implanted at the same position as a pacemaker. One of the possible functions of the ICD is antitachycardia pacing.
It is an expensive device. You should discuss with your cardiologist if you would benefit from such a device or that perhaps other treatment options that you have not yet considered might be more beneficial.