Hello, Dusk69.
First of all, based on your other thread, I wanted to congratulate you. Playing first with your own characters, experimenting and learning the mechanics for yourself is, in my opinion, the best way to approach this kind of games. So well done.
Now, it is natural that after this first experience, and with much more understanding of the game, you want to look at builds to get more ideas and push deeper.
I won’t give specific builds, because as you already noticed, the number of viable options is huge. But here are a few places you can check:
Maxroll.gg has recently pretty much cornered the market, thanks to the very wise policy of hiring some of the most experienced and knowledgeable LE players to write their builds (McFluffin, LizardIRL, etc…).
You can find some very good starter builds there. Most are pretty simple, but they can help you consolidate your own ideas.
Another super-important resource is lastepochtools.com. Dammit is doing an incredible job, and along with his amazing builder, you can find many, many builds there.
But perhaps too many, as they are not really sorted or explained, it can be overwhelming.
Still well worth a visit or twelve.
But in the end, I believe the place where you can find the best builds are the very forums we are on now.
The builds here are more original and usually deeper than on any other site, and they get discussed by the more experienced players around, allowing you to really understand them and compare different approaches.
Just browse through the different classes categories, find something that appeals to you, and read a few comments to see what people say about them (again, most people around here have very reliable and well argumented opinions).
Any build mentioning 0.9 will obviously be directly usable, and most of the 0.8 builds will also still work decently enough to take you easily to empowered monos (although some tweaks will probably be required later as there has been a few changes, but it’s part of the fun).
Good luck in your explorations, traveller!