database sharding strategies, which approach is best? dont you just hate it when you have to pick one? its a tough call.

hey everyone im thinkin alot bout scalin our dbz recently were hitten some limits w our current setup and need to explore sharding ive looked into horiz and vert sharding but im curious bout real world experiences whats your go to sharding strats for large datasets and whats the common pitfalls to watch out for when implimentin them are there specific db tech that make sharding easier