Best to start with your target outcome.

Is your target to generate more income or prestige or just contribute.

Start with your target + work backward.

Also, niche/topic of your training is important.

For example, if your topic relates to (or can be related to) WordPress, then you can go on the WordCamp circuit + you're done for life.

I've been speaking live... geez... my first live talk was in 1974...

The way I go about this is using Meetup + targeting other conferences, in my niches - LAMP Stacks + LXD + High Speed WordPress Hosting + Super Foods.

Fill out speaker proposals, till you book a few speaking Gigs + then you can easily speak at the same Gigs (conferences) in the future + as time goes by, you're ability to write speaker proposals that get you booked will refine + become far more productive.

Tip: Speak for free. Monetize on the backend.

In other words, use the Dan Kennedy model, where I spoke on the road for one year (1994, as I recall) + the result was a company generating $1Ms/year every year thereafter.