Lend something useful and take it back later — a great, easy charity. The Prophet ﷺ said: “Whoever gives a manīḥah of milk or of silver, or guides someone on a road, it is like freeing a slave.” (Tirmidhī — ṣaḥīḥ).
العربية: عن البراء بن عازب رضي الله عنه قال: قال رسول الله ﷺ: «مَن منح مَنيحةَ لبنٍ أو وَرِق، أو هدى زقاقًا، كان له مثلُ عِتق رقبة». (الترمذي).
Lend a car, a tool, a device, or wedding clothes — helping without giving away ownership is a beautiful Sunnah.